这是多组输入

Question

#include<stdio.h>
int main()
{
    int a,i,sum;
    while(~scanf("%d",&i))//什么意思

    {
        sum=0;
        while(i--)//什么意思
        {
            scanf("%d",&a);

            sum+=a;
        }
        printf("%d\n",sum);

    }
    return 0;
}

Answer 1

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