三个月前我就错了,现在又错了,我就是个傻******
服了,看图哇
打扰了。。。
#include<cstdio> #include<iostream> #include<algorithm> #include<cstring> #include<queue> #define maxn 23000 using namespace std; int par[maxn]; int find(int x) { if (par[x] != -1) return par[x] = find(par[x]); else return x; } int n, m; struct Node { int v; int t; Node(int _v, int _t) :v(_v), t(_t) {} }; bool operator<(const Node a, const Node b) { if (a.v == b.v) return a.t < b.t; else return a.v < b.v; } priority_queue<Node>que; int main() { while (~scanf("%d", &n)) { memset(par, -1, sizeof(par)); for (int i = 0; i < n; i++) { int v, t; scanf("%d %d", &v, &t); que.push(Node(v, t)); } long long cnt = 0; while (!que.empty()) { Node ans = que.top(); que.pop(); int t = find(ans.t); if (t > 0) { cnt += ans.v; par[t] = t - 1; } } cout << cnt << endl; } return 0; }
最后附上我老婆(逃)