Question

int a,i,sum; while(~scanf("%d",&i)) { sum=0; while(i--) { scanf("%d",&a); sum+=a; }a,i什么意思？

Sample Input Copy
4 1 2 3 4
5 1 2 3 4 5
Sample Output Copy
10
15

Answer 1

//程序应该是求i到10的和?
#include<stdio.h> //有错！ 少e
void main()
{
int sum=0,i;
scanf("%d",&i);
while(i<=10)
{
sum=sum+i;
i++;
}
printf("sum=%d\n",sum);//你的括号是中文的！
}