PAT A1046 Shortest Distance

PAT A1046 Shortest Distance

标签（空格分隔）： PAT

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TIPS: 最后一个数据点可能会超时

#include <cstdio>
#include <algorithm>
using namespace std;

const int maxn = 100010;
int d[maxn], dist[maxn];

int main() {
    int total = 0, n;
    scanf("%d", &n);
    for(int i = 1; i <= n; i++) {
        scanf("%d", &d[i]);
        total += d[i];
        dist[i] = total;
    }
    int m;
    int start, end;
    scanf("%d", &m);
    for(int i = 0; i < m; i++) {
        scanf("%d%d", &start, &end);
        if(start > end) swap(start, end);
        int temp = dist[end - 1  ] - dist[start - 1];
        printf("%d
", min(temp, total - temp));
    }
    return 0;
}