题解 | 牛牛的平面向量

#include <stdio.h>
#include <stdlib.h>

// write your code here......

int main() {

    int n;
    scanf("%d",&n);

    int* x=(int*)malloc(n*sizeof(int));
    int* y=(int*)malloc(n*sizeof(int));
    int a = 0;
    int b = 0;
    for (int i = 0; i < n; i++) {
        scanf("%d%d",&x[i],&y[i]);
        a += x[i];
        b += y[i];
    }
    printf("%d %d", a, b);
    // write your code here......
    

    free(x);
    free(y);
    return 0;
}