#include<stdio.h>int main() {    int i,sum=0;    for(i=1;i<=100;i++)        sum+=i;        printf("sum=%d\n",sum);        return;    }

#include<stdio.h>int main(){       char c;       int zm=0,sz=0,kg=0,qt=0;       while((c=getchar())!=‘\n‘){              if(c>=‘a‘&&c<=‘z‘||c>‘A‘&&c<=‘Z‘)                     zm++;              else if(c==‘ ‘)                     kg++;              else if(c>=‘0‘&&c<=‘100‘)                     sz++;              else                     qt++;       }        printf("字母个数：%d\n",zm);       printf("空格个数：%d\n",kg);       printf("数字个数：%d\n",sz);       printf("其他个数：%d\n",qt);       return 0;

#include<stdio.h>int main(){i=n; jiec = 1;while(i<=n){    jiec = jiec * i;    i++;}       printf("%d!=%d\n",n,jiec);    return 0;}

#include<stdio.h>int main(){    int m,n,t,i;    printf("ÇëÊäÈëÁ½¸öÕûÊý:");    scanf("%d%d",&m,&n);    if(n>m){        t=m;        m=n;        n=t;    }    for(i=n;i>=1;i--)       if(m%i==0&&n%i==0)               break;        printf("m=%d,n=%d",m,n);    if(i!=0)        printf(",×î´ó¹«Ô¼ÊýΪ:%d",i);        return 0;        }

#include<stdio.h>int main(){    int n,k1,k2,k3;    for(k1=0;k2<=9;k1++)        for(k2=0;k2<=9;k2++)            for(k3=1;k3<=9;k3++){                if(k3*100+k2*10+k1==k1*k1*k1+k2*k2*k2+k3*k3*k3)                    printf("%d\n",k3*100+k2*10+k1);            }            return 0;}