제출 #8369

#제출 시각아이디문제언어결과실행 시간메모리
8369gs14004버스 (JOI14_bus)C++98
35 / 100
252 ms14712 KiB
#include <cstdio> #include <queue> #include <algorithm> #include <utility> using namespace std; typedef pair<int,int> pi; int res[100005]; pi query[100005]; struct ln{int pos,s,e;}; priority_queue<ln> graph[100005]; bool operator<(ln a, ln b){return a.e > b.e;} struct cmp{bool operator()(ln a, ln b){return a.s < b.s;}}; int n,m,q; priority_queue<ln,vector<ln>,cmp> pq; int v[100005]; void process(int lim, int save){ // e small guy out int pos = n; while (!graph[pos].empty()) { ln t = graph[pos].top(); if(t.e > lim) break; pq.push(t); graph[pos].pop(); } while (!pq.empty()) { // s big guy out ln t = pq.top(); pos = t.pos; v[pos] = t.s; pq.pop(); if(pos == 1){ res[save] = t.s; return; } while (!graph[pos].empty()) { ln u = graph[pos].top(); if(u.e > t.s) break; graph[pos].pop(); if(v[u.pos] > u.s) continue; pq.push(u); } } if(save) res[save] = max(-1,res[save-1]); else res[save] = -1; } int main(){ int p,q,r,s; scanf("%d %d",&n,&m); for (int i=0; i<m; i++) { scanf("%d %d %d %d",&p,&q,&r,&s); graph[q].push({ p,r,s}); // 2 -> 1 10 25 } scanf("%d",&q); for (int i=0; i<q; i++) { scanf("%d",&query[i].first); query[i].second = i; } sort(query,query+q); for (int i=0; i<q; i++) { process(query[i].first,query[i].second); } for (int i=0; i<q; i++) { printf("%d\n",res[i]); } }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...