《算法笔记》3.1小节——入门模拟->简单模拟 问题 E: Shortest Distance

把握今天,才能拥有明天!

神级烧脑!我用数组做总不对!!!看了大神写的改用vector就对了,谁能告诉我发生了什么?(PS:看别人代码是不对的,除非我真的做不到)

#include <iostream>
#include <vector>
#include <stdio.h>
using namespace std;
int main() {
    int n;
    scanf("%d", &n);
    vector<int> dis(n + 1);
    int sum = 0, left, right, cnt;
    for(int i = 1; i <= n; i++) {
        int temp;
        scanf("%d", &temp);
        sum += temp;
        dis[i] = sum;
    }
    scanf("%d", &cnt);
    for(int i = 0; i < cnt; i++) {
        scanf("%d %d", &left, &right);
        if(left > right)
            swap(left, right);
        int temp = dis[right - 1] - dis[left - 1];
        printf("%d\n", min(temp, sum - temp));
    }
    return 0;
}

又看了一下,果然是自己想错了,数组和vector没啥区别,自己的思路不对,当然错了······

猜你喜欢

转载自blog.csdn.net/qq_37507976/article/details/82899644