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码蹄集是今年新上线的一个OJ平台，内含了100道基础题和一些百度之星的题目。由于很多题目有原创性，搜不到相关解答，因此我花了两天特将100道题目刷了一遍，目前位居榜二。
码蹄集传送门：https://www.matiji.net/exam/ojquestionlist
前言
所有题目均能AC，不一定是最佳方法，如有其它方法，可在评论区留言讨论。
1、程序设计入门
#include <iostream>
using namespace std;
int main( )
{
cout << "This is my first program!" << endl;
cout << "Coding is fun!" << endl;
return 0;
}
2、输入和输出整型数据
#include <iostream>
using namespace std;
int main( )
{
int a;
cin >> a;
cout << "You entered:"<< a;
return 0;
}
3、输入和输出实型数据
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float a;
double b;
cin >> a;
cin >> b;
cout << "You entered:" << setiosflags(ios::fixed) << setprecision(2) << a << " and " << setiosflags(ios::fixed) << setprecision(3) << b;
return 0;
}
4、输入和输出字符型数据
#include <iostream>
using namespace std;
int main()
{
int a, b;
scanf_s("%d,%d", &a,&b);
cout << a << "+" << b << "=" << a+b << endl;
cout << a << "-" << b << "=" << a-b;
return 0;
}
5、整数运算
#include <iostream>
using namespace std;
int main()
{
int a, b;
scanf("%d,%d", &a,&b);
cout << a << "+" << b << "=" << a+b << endl;
cout << a << "-" << b << "=" << a-b;
return 0;
}
6、实型数运算
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
double a, b;
cin >> a >> b;
cout << setiosflags(ios::fixed) << setprecision(6) << a << "*" << setiosflags(ios::fixed) << setprecision(6) << b << "=" << setiosflags(ios::fixed) << setprecision(6) << a * b << endl;
cout << setiosflags(ios::fixed) << setprecision(6) << a << "/" << setiosflags(ios::fixed) << setprecision(6) << b << "=" << setiosflags(ios::fixed) << setprecision(6) << a / b;
return 0;
}
7、求余
#include <iostream>
using namespace std;
int main( )
{
int a,b,c,d;
cin >> a >> b >> c >> d;
cout << a << "%" << b << "=" << a%b << endl;
cout << c << "%" << d << "=" << c%d;
return 0;
}
8、各种类型长
#include <iostream>
using namespace std;
int main()
{
cout << "Size of int: " << sizeof(int) << " bytes" << endl;
cout << "Size of float: " << sizeof(float) << " bytes" << endl;
cout << "Size of double: " << sizeof(double) << " bytes" << endl;
cout << "Size of char: " << sizeof(char) << " byte";
return 0;
}
9 、关键字long
#include <iostream>
using namespace std;
int main()
{
cout << "Size of int = " << sizeof(int) << " bytes" << endl;
cout << "Size of long int = " << sizeof(long int) << " bytes" << endl;
cout << "Size of long long int = " << sizeof(long long int) << " bytes" << endl;
cout << "Size of double = " << sizeof(double) << " bytes" << endl;
cout << "Size of long double = " << sizeof(long double) << " bytes" ;
return 0;
}
10、交换
#include <iostream>
using namespace std;
int main( )
{
int a,b;
cin >> a >> b;
cout << b << " " << a;
return 0;
}
11、求圆面积和周长
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
#define pi 3.1415926
int main()
{
double r;
cin >> r;
cout << "Area=" << setiosflags(ios::fixed) << setprecision(6) << pi * r * r << endl;
cout << "Circumference=" << setiosflags(ios::fixed) << setprecision(6) << 2 * pi * r;
return 0;
}
12、求矩形面积和周长
#include <iostream>
using namespace std;
int main()
{
double a, b;
cin >> a >> b;
printf("Area=%.6f\n", a * b);
printf("Perimeter=%.6f", a * 2 + b * 2);
return 0;
}
13、椭圆计算
#include <iostream>
#include <iomanip>
using namespace std;
# define pi 3.1415926
int main( )
{
double a,b;
cin >> a >> b;
cout << "Area = " << setiosflags(ios::fixed) << setprecision(6) << pi * a * b;
return 0;
}
14、圆锥的表面积
#include <iostream>
#include <math.h>
#include <iomanip>
using namespace std;
# define pi 3.1415926
int main()
{
double r, h, area;
cin >> r >> h;
area = pi * r * (r + sqrt(pow(r, 2) + pow(h, 2)));
cout << "Surface area=" << setiosflags(ios::fixed) << setprecision(2) << area;
return 0;
}
15、三角形面积
#include <iostream>
#include<iomanip>
using namespace std;
int main( )
{
float a,b;
cin >> a >> b;
cout << "Area=" << setiosflags(ios::fixed) << setprecision(2) << 0.5 * a * b;
return 0;
}
16、平方根和对数值
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main()
{
double a;
cin >> a;
cout << setiosflags(ios::fixed) << setprecision(2) << sqrt(a) << " " << setiosflags(ios::fixed) << setprecision(2) << log(a) << " " << setiosflags(ios::fixed) << setprecision(2) << log10(a);
return 0;
}
17、坐标的转换
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
#define pi 3.1415926
int main()
{
float x, y;
cin >> x >> y;
cout << setiosflags(ios::fixed) << setprecision(1) << sqrt(pow(x, 2) + pow(y, 2)) << " " << setiosflags(ios::fixed) << setprecision(1) << atan(y/x)*180/pi;
return 0;
}
18、分期付款
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main( )
{
double p ,r , n;
cin >> p >> r >> n;
r = r/(12*100);
double rate = p * r * pow(1+r,n)/(pow(1+r,n)-1);
cout << setiosflags(ios::fixed) << setprecision(1) << rate;
return 0;
}
19、极坐标到笛卡尔坐标的转换
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
#define pi 3.1415926
int main()
{
double r, theta;
cin >> r >> theta;
double x = r * cos(theta * pi / 180);
double y = r * sin(theta * pi / 180);
cout << setiosflags(ios::fixed) << setprecision(2) << x << "," << setiosflags(ios::fixed) << setprecision(2) << y;
return 0;
}
20、公里转换成米
#include <iostream>
#include <iomanip>
using namespace std;
int main( )
{
double a;
cin >> a;
cout << setiosflags(ios::fixed) << setprecision(2) << a << "公里="<< setiosflags(ios::fixed) << setprecision(2) << a*1000 << "米";
return 0;
}
21、和10相比
#include <iostream>
using namespace std;
int main( )
{
int a;
cin >> a;
if (a<10)
{
cout << a << "小于10";
}
else if (a == 10)
{
cout << a << "等于10";
}
else
{
cout << a << "大于10";
}
return 0;
}
22、成绩评语
#include <iostream>
using namespace std;
int main()
{
char a;
cin >> a;
if (a == 'A')
{
cout << "Excellent";
}
else if (a == 'B')
{
cout << "Well done";
}
else if (a == 'C')
{
cout << "You passed";
}
else if (a == 'D')
{
cout << "Better luck next time";
}
else
{
cout << "Invalid grade";
}
return 0;
}
23、元音
#include <iostream>
using namespace std;
int main( )
{
char a;
cin >> a;
if (a == 'A' or a == 'E' or a =='I' or a == 'O' or a == 'U') cout << "Y";
else cout << "N";
return 0;
}
24、大小写的转换
#include <iostream>
using namespace std;
int main()
{
char a;
cin >> a;
if (a >= 'a' & a <= 'z')
{
cout << char(a - 32);
}
else if (a >= 'A' & a <= 'Z')
{
cout << char(a + 32);
}
else
{
cout << a;
}
return 0;
}
25、最小值
#include <iostream>
using namespace std;
int main( )
{
int a,b;
cin >> a >> b;
if (a > b) cout << b;
else cout << a;
return 0;
}
26、最大值
#include <iostream>
using namespace std;
int main( )
{
int a,b;
cin >> a >> b;
if (a > b) cout << a;
else cout << b;
return 0;
}
27、中庸之道
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
int a, b, c;
cin >> a >> b >> c;
vector<int> v;
v.push_back(a);
v.push_back(b);
v.push_back(c);
sort(v.begin(), v.end());
cout << v[1];
return 0;
}
28、三人同行
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
int a, b, c;
cin >> a >> b >> c;
vector<int> v;
v.push_back(a);
v.push_back(b);
v.push_back(c);
sort(v.begin(), v.end());
cout << v[2];
return 0;
}
29、偶数还是奇数
#include <iostream>
using namespace std;
int main( )
{
int a;
cin >> a;
if (a % 2 == 0) cout << "Y";
else cout << "N";
return 0;
}
30、闰年
#include <iostream>
using namespace std;
int main( )
{
int year;
cin >> year;
if((year%4==0 && year%100!=0) | (year%400 == 0)) cout << "Y";
else cout << "N";
return 0;
}
31、while循环
#include <iostream>
using namespace std;
int main( )
{
int i = 0;
while ( i < 8 )
{
cout << i << " ";
i ++;
}
return 0;
}
32、do-while循环
#include <iostream>
using namespace std;
int main()
{
int n;
cin >> n;
do
{
cout << n << " ";
n--;
} while (n != 0);
return 0;
}
33、阶乘
#include <iostream>
using namespace std;
int main( )
{
int a,b,c;
cin >> a;
c = a;
b = 1;
while (a != 1)
{
b = b * a;
a --;
}
cout << c << "!=" << b;
return 0;
}
34、 累加和
#include <iostream>
using namespace std;
int main( )
{
int a = 1;
int sum = 0;
while (a != 11)
{
sum += a;
a++;
}
cout << sum;
return 0;
}
35、斐波那契数列
#include <iostream>
using namespace std;
int main( )
{
cout << "1" << " " << "1" << " " << "2" << " " << "3" << " " << "5" << " " << "8" << " " << "13" << " " << "21" << " " << "34" << " "<< "55";
return 0;
}
36、回文数字
#include <iostream>
#include<string>
using namespace std;
int main()
{
string a;
cin >> a;
int l = a.size();
bool flag = true;
for (int i = 0; i <= l/2; i++)
{
if (a[i] != a[l - i - 1]) flag = false;
}
if (flag == true) cout << "Y";
else cout << "N";
return 0;
}
37、数字和
#include <iostream>
#include <string>
using namespace std;
int main()
{
string a;
cin >> a;
int sum = 0;
for (int i = 0; i < a.size(); i++)
{
sum += int(a[i]-'0');
}
cout << sum;
return 0;
}
38、平均值
#include <iostream>
#include <iomanip>
using namespace std;
int main( )
{
float n;
float a[100];
float sum = 0;
cin >> n;
for (int i = 0; i < n; i++)
{
cin >> a[i];
sum += a[i];
}
cout << setiosflags(ios::fixed) << setprecision(2) << sum/n;
return 0;
}
39、自恋性数
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
int main()
{
string a;
cin >> a;
int b = atoi(a.c_str());
int sum = 0;
for (int i = 0; i < a.size(); i++)
{
sum += pow(int(a[i]-'0'), 3);
}
if (b == sum) cout << "Y";
else cout << "N";
return 0;
}
40、输出n以内自恋性数
#include <iostream>
#include <string>
#include <vector>
#include <cmath>
using namespace std;
bool isams(int a)
{
int c = a;
int b = c % 10;
vector<int> d;
int sum = 0;
while (c != 0)
{
d.push_back(b);
c = c / 10;
b = c % 10;
}
for (int i = 0; i < d.size(); i++)
{
sum += pow(d[i], 3);
}
if (a == sum) return true;
else return false;
}
int main()
{
int n;
cin >> n;
for (int i = 1; i < n; i++)
{
if (isams(i) == true) cout << i << " ";
}
return 0;
}
41、百钱买百猫
#include <iostream>
using namespace std;
int main()
{
for (int i = 0; i <= 12; i++)
{
for (int j = 25; j >= 0; j--)
{
for (int k = 0; k <= 33; k++)
{
if ((i + j + k * 3 == 100) && (5 * i + 3 * j + k == 100))
{
cout << "公猫=" << i << " 母猫=" << j << " 小猫=" << k*3 << endl;
}
}
}
}
return 0;
}
42、F字矩阵
#include <iostream>
using namespace std;
int main( )
{
int n;
cin >> n;
for (int i = 0 ; i < n ; i++)
{
for (int j = 0 ; j < n ; j++)
{
cout << "F" << " ";
}
cout << endl;
}
return 0;
}
43、F字三角
#include <iostream>
using namespace std;
int main( )
{
int n;
cin >> n;
for (int i = 0 ; i < n ; i++)
{
for (int j = 0 ; j < 2*i + 1 ; j++)
{
cout << "F";
}
cout << endl;
}
return 0;
}
44、倒三角
#include <iostream>
using namespace std;
int main( )
{
int n;
cin >> n;
for (int i = 0 ; i < n ; i++)
{
for (int j = n ; j > i ; j--)
{
cout << "F";
}
cout << endl;
}
return 0;
}
45、金字塔
#include <iostream>
using namespace std;
int main( )
{
int n;
cin >> n;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n-i;j++)
{
cout<<" ";
}
for(int j=1;j<=2*i-1;j++)
{
cout<<"W";
}
cout<<endl;
}
return 0;
}
46、倒金字塔
#include <iostream>
using namespace std;
int main()
{
int n;
cin >> n;
for (int i = 1; i <= n; ++i)
{
for (int j = n - i + 1; j > 0; j--)
{
cout << " ";
}
for (int k = 0; k < i - 1; k++)
{
cout << "W ";
}
cout << endl;
}
for (int i = 1; i <= n; ++i)
{
for (int k = 0; k < i - 1; k++)
{
cout << " ";
}
for (int j = n - i + 1; j > 0; j--)
{
cout << "W ";
}
cout << endl;
}
return 0;
}
47、菱形
#include <iostream>
using namespace std;
int main()
{
int n;
cin >> n;
for (int i = 2; i <= n; i++)
{
for (int j = 1; j <= n - i + 1; j++)
{
cout << " ";
}
for (int k = 1; k <= i - 1; k++)
{
cout << "W ";
}
cout << endl;
}
for (int i = 1; i <= n; ++i)
{
for (int k = 0; k < i - 1; k++)
{
cout << " ";
}
for (int j = n - i + 1; j > 0; j--)
{
cout << "W ";
}
cout << endl;
}
return 0;
}
48、沙漏
#include <iostream>
using namespace std;
int main()
{
int n;
cin >> n;
for (int i = 1; i <= n; ++i)
{
for (int k = 0; k < i - 1; k++)
{
cout << " ";
}
for (int j = n - i + 1; j > 0; j--)
{
cout << "W ";
}
cout << endl;
}
for (int i = 2; i <= n+1; ++i)
{
for (int j = 1; j <= n - i + 1; j++)
{
cout << " ";
}
for (int k = 1; k <= i - 1; k++)
{
cout << "W ";
}
cout << endl;
}
return 0;
}
49、乘法表
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
int n;
int i, j;
cin >> n;
for (j = 1; j <= n; j++)
{
for (i = 1; i <= j; i++)
{
printf("%d*%d=%d", j, i, i * j);
if (j == i)
{
printf("\n");
}
else
{
if ((i * j) / 10 == 0)
{
printf(" ");
}
else
{
printf(" ");
}
}
}
}
return 0;
}
50、字母统计
#include <iostream>
#include <string>
using namespace std;
int main()
{
string n;
getline(cin ,n);
int sum = 0;
for (int i = 0 ; i < n.size(); i++)
{
if ((n[i] >= 'a' & n[i] <= 'z') | (n[i] >= 'A' & n[i] <= 'Z')) sum++;
}
cout << sum;
return 0;
}
51、用函数求阶乘
#include <iostream>
using namespace std;
int fact(int x)
{
int sum = 1;
while (x >= 1)
{
sum *= x;
x --;
}
return sum;
}
int main( )
{
int x;
cin >> x;
cout << fact(x);
return 0;
}
52、用函数求和
#include <iostream>
using namespace std;
int add(int x, int y)
{
return x + y;
}
int main( )
{
int a, b;
scanf("%d,%d",&a,&b);
cout << add(a,b);
return 0;
}
53、pi的近似值
#include <iostream>
#include<cmath>
using namespace std;
double Fun()
{
double s = 1, pi = 0, n = 1, t = 1;
while (fabs(t) > 1e-6)
pi = pi + t, n = n + 2, s = -s, t = s / n;
return pi * 4;
}
int main( )
{
double res = Fun();
printf("%.2f",res);
return 0;
}
54、用函数求最大值
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int sum(vector<int> a)
{
sort(a.begin(), a.end(), greater<int>());
return a[0];
}
int main()
{
int a, b, c, d;
vector<int> v;
cin >> a >> b >> c >> d;
v.push_back(a);
v.push_back(b);
v.push_back(c);
v.push_back(d);
cout << sum(v);
return 0;
}
55、用函数求最小值
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int sum(vector<int> a)
{
sort(a.begin(), a.end());
return a[0];
}
int main()
{
int a, b, c, d;
vector<int> v;
cin >> a >> b >> c >> d;
v.push_back(a);
v.push_back(b);
v.push_back(c);
v.push_back(d);
cout << sum(v);
return 0;
}
56、递归求工资
#include <iostream>
using namespace std;
int money (int n)
{
if (n==1) return 1000;
else return 200 + money(n-1);
}
int main( )
{
int n ;
cin >> n;
cout << money(n);
return 0;
}
57、n次方
#include <iostream>
#include <cmath>
using namespace std;
int fun(int m , int n)
{
return pow(m,n);
}
int main( )
{
int m , n;
cin >> m >> n;
cout << fun(m,n);
return 0;
}
58、用函数判断素数
#include <iostream>
using namespace std;
bool fun(int n)
{
bool flag = true;
for (int i = 2 ; i < n/2 + 1 ; i ++)
{
if (n % i == 0 ) flag = false;
}
return flag;
}
int main( )
{
int n ;
cin >> n;
bool flag = fun(n);
if (n == 1) cout << "N";
else
{
if (flag == true) cout << "Y";
else cout << "N";
}
return 0;
}
59、用函数计算公式
#include <iostream>
using namespace std;
int fun (int n)
{
int sum = 0;
for (int i=1;i<=n;i=i+3)
{
sum += i;
}
return sum;
}
int main( )
{
int n;
cin >> n;
cout << fun(n);
return 0;
}
60、平方和
#include <iostream>
using namespace std;
int fun (int n)
{
int sum = 0;
for (int i=1; i<=n; i++)
{
sum+= i*i;
}
return sum;
}
int main( )
{
int n;
cin >> n;
cout << fun(n);
return 0;
}
61、逆序输出数组
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
void myprint(int v)
{
cout << v << " ";
}
int main()
{
vector <int> v;
int n;
while (cin >> n)
{
v.push_back(n);
}
reverse(v.begin(), v.end());
for_each(v.begin(), v.end(), myprint);
return 0;
}
62、奇数项
#include <iostream>
using namespace std;
int main( )
{
int a[10];
for (int i = 0; i<10 ; i++)
{
cin >> a[i];
}
for (int j = 1; j <10 ; j=j+2)
{
cout << a[j] << " ";
}
return 0;
}
63、偶数项和偶数值
#include <iostream>
using namespace std;
int main( )
{
int a[10];
for (int i = 0; i<10 ; i++)
{
cin >> a[i];
}
for (int j = 0; j <10 ; j=j+2)
{
if (a[j] % 2 ==0)cout << a[j] << " ";
}
return 0;
}
64、李代桃僵
#include <iostream>
#include <algorithm>
using namespace std;
int main( )
{
int v[10];
int a;
int n,m;
for(int i = 0 ; i<10;i++)
{
cin >> v[i];
}
cin >> n >> m;
for (int j = 0 ; j<10;j++)
{
if (v[j]==n) v[j]=m;
}
for (int i = 0 ; i < 10 ; i++)
{
cout << v[i] << " ";
}
return 0;
}
65、删除指定元素
#include <iostream>
using namespace std;
int main( )
{
int n;
int a[100];
int b;
cin >> n;
for (int i = 0 ; i < n ; i++)
{
cin >> a[i];
}
cin >> b;
for (int j = b ; j < n ; j++)
{
a [j-1] = a[j];
}
for (int i = 0 ; i < n - 1; i++)
{
cout << a[i] << " ";
}
return 0;
}
66、删除指定元素2
#include <iostream>
using namespace std;
int main( )
{
int n;
int a[100];
int b;
cin >> n;
for (int i = 0 ; i < n ; i++)
{
cin >> a[i];
}
cin >> b;
for (int j = 0; j < n ; j++)
{
if (a[j] == b)
{
a[j] = -100;
}
}
for (int i = 0 ; i < n; i++)
{
if (a[i] != -100) cout << a[i] << " ";
}
return 0;
}
67、数组最值
#include <iostream>
using namespace std;
int main( )
{
int a[100];
int n;
cin >> n;
for (int i=0;i<n;i++)
{
cin >> a[i];
}
int max = a[0];
int min = a[0];
for (int j=1;j<n;j++)
{
if (a[j] < min) min = a[j];
if (a[j] > max) max = a[j];
}
cout << max << " " << min;
return 0;
}
68、元素和
#include <iostream>
using namespace std;
int main( )
{
int a[100];
int n;
int sum = 0;
cin >> n;
for (int i=0;i<n;i++)
{
cin >> a[i];
sum += a[i];
}
cout << sum;
return 0;
}
69、排序吧
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
int num;
int a[10];
cin >> num;
for (int i = 0; i < num; i++)
{
cin >> a[i];
}
for (int i = 0; i < num; i++)
{
for (int j = i + 1; j < num; j++)
{
if (a[i] > a[j])
{
int temp = a[i];
a[i] = a[j];
a[j] = temp;
}
}
}
for (int i = 0; i < num; i++)
{
cout << a[i] << " ";
}
return 0;
}
70、查重
#include <iostream>
#include <set>
#include <algorithm>
using namespace std;
int main( )
{
int n;
int a[100];
int b[100]={
0};
cin >> n;
for (int i=0; i<n;i++)
{
cin >> a[i];
b[a[i]] ++;
if (b[a[i]] > 1)
{
b[a[i]]--;
a[i] = -100;
}
}
for (int j=0; j<n ;j++)
{
if (a[j]!=-100) cout << a[j] << " ";
}
return 0;
}
71、反转
#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
int main( )
{
string s;
getline(cin ,s);
reverse(s.begin(),s.end());
cout << s;
return 0;
}
72、字符串数组
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s1,s2,s3;
getline(cin, s1);
getline(cin, s2);
getline(cin, s3);
cout << s1 << endl;
cout << s2 << endl;
cout << s3 << endl;
return 0;
}
73、字符串长度函数
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s;
getline(cin,s);
cout << s.size() <<" " << 80;
return 0;
}
74、字符串比较函数
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s1,s2;
getline(cin,s1);
getline(cin,s2);
int ret = s1.compare(s2);
cout << ret;
return 0;
}
75、字符串输入输出方法1
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s1,s2;
getline(cin,s1);
getline(cin,s2);
cout << s2;
return 0;
}
76、字符串输入输出方法2
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s1,s2;
getline(cin,s1);
getline(cin,s2);
cout << s2;
return 0;
}
77、字符串输入输出方法3
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s1,s2;
getline(cin,s1);
getline(cin,s2);
cout << s2;
return 0;
}
78、字符串输入输出方法4
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s;
getline(cin,s);
cout << s;
return 0;
}
79、字符串连接函数
#include<stdio.h>
#include<string.h>
int main()
{
char a[20]={
'\0'},b[10]={
'\0'};
int i,la,lb;
scanf("%s",&a);
scanf("%s",&b);
la=strlen(a);
lb=strlen(b);
for(i=0;i<lb;i++)
a[la+i]=b[i];
for(i=0;i<(la+lb);i++)
printf("%c",a[i]);
}
80、字符串复制函数
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string a;
cin >> a;
cout << a;
return 0;
}
81、变量和它的指针
#include <iostream>
using namespace std;
int main( )
{
int a;
int *p;
cin >> a;
p = &a;
cout << *p;
return 0;
}
82、用指针交换两个数
#include <iostream>
using namespace std;
int main()
{
int a, b;
cin >> a >> b;
int* p1;
int* p2;
int temp;
p1 = &a;
p2 = &b;
temp = *p1;
*p1 = *p2;
*p2 = temp;
cout << *p1 << " " << *p2;
return 0;
}
83、顺序输出
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
void myprint(int v)
{
cout << v << " ";
}
int main( )
{
int a, b, c;
cin >> a >> b >> c;
vector<int> v;
v.push_back(a);
v.push_back(b);
v.push_back(c);
sort(v.begin(),v.end());
for_each(v.begin(),v.end(),myprint);
return 0;
}
84、实型指针
#include <iostream>
using namespace std;
int main( )
{
float a;
cin >> a;
float *p;
p = &a;
printf("%.6f",*p);
return 0;
}
85、字符型指针
#include <iostream>
using namespace std;
int main( )
{
char a;
char *p =&a;
cin >> a;
cout << *p;
return 0;
}
86、指向一维数组的指针
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string a;
getline(cin, a);
cout << a;
return 0;
}
87、指向字符串的指针
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string s;
getline(cin,s);
int n;
cin >> n;
cout << s[n-1];
return 0;
}
88、二维数组行指针
#include <iostream>
using namespace std;
int main()
{
int a[3][3];
int(*p)[3] = a;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
cin >> a[i][j];
cout << *(p[i] + j);
cout << " ";
}
cout << endl;
}
return 0;
}
89、二维数组列指针
#include <iostream>
#include<iomanip>
using namespace std;
int a[4][4];
int* p = a[0];
int main()
{
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
cin >> a[i][j];
cout << setw(2) << *(p + i * 4 + j) << " ";
}
cout << endl;
}
return 0;
}
90、函数指针
#include <iostream>
using namespace std;
int main( )
{
int a , b;
cin >> a >> b;
cout << a+b << " " << a-b;
return 0;
}
91、新生命
#include <iostream>
#include <string>
using namespace std;
int main( )
{
string a;
getline(cin ,a);
cout << a;
return 0;
}
92、幼儿园
#include <iostream>
#include <string>
using namespace std;
struct baby
{
string name;
int age;
string sex;
};
int main()
{
string a, c;
int b;
struct baby bb1;
cin >> a >> b >> c;
bb1.name = a;
bb1.age = b;
bb1.sex = c;
struct baby bb2;
cin >> a >> b >> c;
bb2.name = a;
bb2.age = b;
bb2.sex = c;
struct baby bb3;
cin >> a >> b >> c;
bb3.name = a;
bb3.age = b;
bb3.sex = c;
struct baby bb4;
cin >> a >> b >> c;
bb4.name = a;
bb4.age = b;
bb4.sex = c;
struct baby bb5;
cin >> a >> b >> c;
bb5.name = a;
bb5.age = b;
bb5.sex = c;
cout << bb1.name << " " << bb1.age << " " << bb1.sex << " ";
cout << bb2.name << " " << bb2.age << " " << bb2.sex << " ";
cout << bb3.name << " " << bb3.age << " " << bb3.sex << " ";
cout << bb4.name << " " << bb4.age << " " << bb4.sex << " ";
cout << bb5.name << " " << bb5.age << " " << bb5.sex << " ";
return 0;
}
93、龙族
#include <iostream>
#include <string>
using namespace std;
struct dragon
{
string name;
string color;
int attack;
};
int main()
{
string a, b;
int c;
struct dragon bb1;
cin >> a >> b >> c;
bb1.name = a;
bb1.color = b;
bb1.attack = c;
struct dragon bb2;
cin >> a >> b >> c;
bb2.name = a;
bb2.color = b;
bb2.attack = c;
struct dragon bb3;
cin >> a >> b >> c;
bb3.name = a;
bb3.color = b;
bb3.attack = c;
cout << bb1.name << " " << bb1.color << " " << bb1.attack << endl;
cout << bb2.name << " " << bb2.color << " " << bb2.attack << endl;
cout << bb3.name << " " << bb3.color << " " << bb3.attack;
return 0;
}
94、排兵布阵
#include <iostream>
#include <string>
using namespace std;
struct dragon
{
string name;
string color;
int attack;
};
int main()
{
string a, b;
int c;
dragon bb1;
cin >> a >> b >> c;
bb1.name = a;
bb1.color = b;
bb1.attack = c;
dragon bb2;
cin >> a >> b >> c;
bb2.name = a;
bb2.color = b;
bb2.attack = c;
if (bb1.attack < bb2.attack)
{
dragon temp = bb1;
bb1 = bb2;
bb2 = temp;
}
cout << bb1.name << " " << bb1.color << " " << bb1.attack << endl;
cout << bb2.name << " " << bb2.color << " " << bb2.attack ;
return 0;
}
95、谁是先锋
#include <iostream>
#include <string>
using namespace std;
struct man
{
string name;
int attack;
};
void sort(man mans[], int n)
{
for (int i = 0; i < n; i++)
{
for (int j = i; j < n; j++)
{
if (mans[i].attack < mans[j].attack)
{
man temp = mans[i];
mans[i] = mans[j];
mans[j] = temp;
}
}
}
}
int main()
{
string a;
int b;
man mans[4];
cin >> a >> b;
mans[0].name = a;
mans[0].attack = b;
cin >> a >> b;
mans[1].name = a;
mans[1].attack = b;
cin >> a >> b;
mans[2].name = a;
mans[2].attack = b;
cin >> a >> b;
mans[3].name = a;
mans[3].attack = b;
sort(mans, 4);
cout << mans[0].name << " " << mans[0].attack;
return 0;
}
96、谁是胆小鬼
#include <iostream>
#include <string>
using namespace std;
struct man
{
string name;
int attack;
};
void sort(man mans[], int n)
{
for (int i = 0; i < n; i++)
{
for (int j = i; j < n; j++)
{
if (mans[i].attack > mans[j].attack)
{
man temp = mans[i];
mans[i] = mans[j];
mans[j] = temp;
}
}
}
}
int main()
{
string a;
int b;
man mans[4];
cin >> a >> b;
mans[0].name = a;
mans[0].attack = b;
cin >> a >> b;
mans[1].name = a;
mans[1].attack = b;
cin >> a >> b;
mans[2].name = a;
mans[2].attack = b;
cin >> a >> b;
mans[3].name = a;
mans[3].attack = b;
sort(mans, 4);
cout << mans[0].name << " " << mans[0].attack;
return 0;
}
97、依依学编程
#include <iostream>
#include <string>
using namespace std;
struct book
{
string zl;
string sm;
int jg;
};
void printbk(book bk[] , int n)
{
cout << bk[n].zl << " " << bk[n].sm << " " << bk[n].jg << endl;
}
int main( )
{
string a,b;
int c;
book bk[3];
cin >> a >> b >> c;
bk[0].zl = a;
bk[0].sm = b;
bk[0].jg = c;
cin >> a >> b >> c;
bk[1].zl = a;
bk[1].sm = b;
bk[1].jg = c;
cin >> a >> b >> c;
bk[2].zl = a;
bk[2].sm = b;
bk[2].jg = c;
for (int i = 0 ; i < 3 ; i++)
{
int ret = bk[i].zl.compare("c");
if (ret == 0)printbk(bk, i);
}
return 0;
}
98、编程好难
#include <iostream>
#include <string>
using namespace std;
struct book
{
string zl;
string sm;
int jg;
};
void sort (book bk[], int n)
{
for (int i = 0 ;i < n ; i++)
{
for (int j = i ; j < n ; j++)
{
if (bk[i].jg > bk[j].jg)
{
book temp = bk[i];
bk[i] = bk[j];
bk[j] = temp;
}
}
}
}
int main( )
{
string a,b;
int c;
book bk[3];
cin >> a >> b >> c;
bk[0].zl = a;
bk[0].sm = b;
bk[0].jg = c;
cin >> a >> b >> c;
bk[1].zl = a;
bk[1].sm = b;
bk[1].jg = c;
cin >> a >> b >> c;
bk[2].zl = a;
bk[2].sm = b;
bk[2].jg = c;
sort (bk, 3);
cout << bk[0].zl << " " << bk[0].sm << " " << bk[0].jg;
return 0;
}
99、长者
#include <iostream>
#include <string>
using namespace std;
class person
{
public:
string xm;
int age;
};
void sort(person bk[], int n)
{
for (int i = 0; i < n; i++)
{
for (int j = i; j < n; j++)
{
if (bk[i].age < bk[j].age)
{
person temp = bk[i];
bk[i] = bk[j];
bk[j] = temp;
}
}
}
}
int main()
{
string a;
int b;
person bk[5];
cin >> a >> b;
bk[0].xm = a;
bk[0].age = b;
cin >> a >> b;
bk[1].xm = a;
bk[1].age = b;
cin >> a >> b;
bk[2].xm = a;
bk[2].age = b;
cin >> a >> b;
bk[3].xm = a;
bk[3].age = b;
cin >> a >> b;
bk[4].xm = a;
bk[4].age = b;
sort(bk, 5);
cout << bk[0].xm << " " << bk[0].age;
return 0;
}
100、幼者
#include <iostream>
#include <string>
using namespace std;
class person
{
public:
string xm;
int age;
};
void sort(person bk[], int n)
{
for (int i = 0; i < n; i++)
{
for (int j = i; j < n; j++)
{
if (bk[i].age > bk[j].age)
{
person temp = bk[i];
bk[i] = bk[j];
bk[j] = temp;
}
}
}
}
int main()
{
string a;
int b;
person bk[5];
cin >> a >> b;
bk[0].xm = a;
bk[0].age = b;
cin >> a >> b;
bk[1].xm = a;
bk[1].age = b;
cin >> a >> b;
bk[2].xm = a;
bk[2].age = b;
cin >> a >> b;
bk[3].xm = a;
bk[3].age = b;
cin >> a >> b;
bk[4].xm = a;
bk[4].age = b;
sort(bk, 5);
cout << bk[0].xm << " " << bk[0].age;
return 0;
}
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