#include<stdio.h> int main() //求平均值 {    int a;    int b;    int c;    int d;    int e;    scanf("%d %d %d %d %d",&a,&b,&c,&d,&e);    printf ("%d",(a+b+c+d+e)/5);    return 0; } 

#include<stdio.h>int main()//m到n的和{    int m,n;    int i;    int sum=0;    scanf("%d %d",&m,&n);    for(i=m;i<=n;i++)    printf("sum=%d\n",sum=sum+i);    return 0;}

#include<stdio.h>int main()//比大小 {    int a,b;    scanf("%d %d",&a,&b);    if (a<b)    printf("%d",b);    else    printf("%d",a);    return 0;}