题解 | N个数之和

#include <stdio.h>

int main() 
{
   int n = 0;
   while (scanf("%d", &n) == 1)
   {
        int arr[n];
        int i = 0;
        int sum = 0;
        for (i = 0; i < n; i++)
        {
            scanf("%d", &arr[i]);
            sum += arr[i];
        }
        printf("%d\n", sum);
   }

    return 0;
}