C语言内存击败所有人

#include<stdio.h>

int main(){
    int n;
    int sum=0;
    int a[100010]={0};
    int b[100010]={0};
    scanf("%d",&n);
    for (int i=0;i<n;i++) scanf("%d",&a[i]);
    for (int i=0;i<n;i++) scanf("%d",&b[i]);
    for (int i=0;i<n;i++){
        if (a[i]<b[i]) sum-=3;
        else if (a[i]>b[i]) sum+=3;
    }
    printf("%d",sum);
    return 0;
}