标签:style http color os io for ar 代码
题意:给定一些操作,每次add进一个数,然后第i次询问的时候输出当前第i小的数字
思路:用两个优先队列搞,相当于把序列分成两个序列,每次取的答案就是后一个队列的头
代码:
#include <cstdio> #include <cstring> #include <queue> #include <vector> using namespace std; const int N = 30005; int t, m, q, vis[N], num[N]; void solve() { priority_queue<int> a; priority_queue<int, vector<int>, greater<int> > b; for (int i = 1; i <= m; i++) { a.push(num[i]); b.push(a.top()); a.pop(); while (vis[i]--) { printf("%d\n", b.top()); a.push(b.top()); b.pop(); } } } int main() { scanf("%d", &t); while (t--) { scanf("%d%d", &m, &q); for (int i = 1; i <= m; i++) scanf("%d", &num[i]); memset(vis, 0, sizeof(vis)); while (q--) { scanf("%d", &num[0]); vis[num[0]]++; } solve(); if (t) printf("\n"); } return 0; }
UVA 501 - Black Box(优先队列),布布扣,bubuko.com
标签:style http color os io for ar 代码
原文地址:http://blog.csdn.net/accelerator_/article/details/38358691