#include<stdio.h>
void main()
{
int i=1,sum=0,n;
printf("input:n=");
scanf("%d",&n);
while(i<=n){
sum=sum+i;
i++;}
printf("%d\n",sum);
}
微信扫一扫
#include<stdio.h>
void main()
{
int i=1,sum=0,n;
printf("input:n=");
scanf("%d",&n);
while(i<=n){
sum=sum+i;
i++;}
printf("%d\n",sum);
}
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