oj.uz

답안 #993984

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
993984 2024-06-07T00:11:27 Z aaaaaarroz 봉쇄 시간 (IOI23_closing) C++17
0 / 100
 91 ms 56916 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

vector<vector<pair<ll,ll>>>graph;
vector<bool> vis;
void dfs(vector<ll> &dist, int x, ll d){
    vis[x] = true;
    dist[x] = d;
    for (auto [y, w] : graph[x]){
        if (!vis[y]){
            dfs(dist, y, d + w);
        }
    }
}
int max_score(int N, int X, int Y, ll K, vector<int> U, vector<int> V, vector<int> W){
	graph.assign(N,vector<pair<ll,ll>>());
	for(int i=0;i<(N-1);i++){
		graph[U[i]].push_back({V[i],W[i]});
		graph[V[i]].push_back({U[i],W[i]});
	}
	//Calculo de distancia.
	vis.assign(N,false);
	vector<ll>distX(N);
	dfs(distX,X,0);
	vis.assign(N,false);
	vector<ll>distY(N);
	dfs(distY,Y,0);
	vector<ll>closing(N,0);
	vector<vector<bool>>v(2,vector<bool>(N));
	priority_queue<tuple<ll,ll,ll>,vector<tuple<ll,ll,ll>>,greater<tuple<ll,ll,ll>>>prioridad;
	int ans=0;
	prioridad.push({0,X,0});
	prioridad.push({0,Y,1});
	while(!prioridad.empty()){
		auto[cost,nodo,from]=prioridad.top();
		prioridad.pop();
		if((K+closing[nodo])>=cost){
			K+=closing[nodo];
			K-=cost;
			closing[nodo]=cost;
			v[from][nodo]=true;
			ans++;
		}
		for(auto [vecino,no_importa]:graph[nodo]){
			if(!v[vecino][from]&&from==0){
				prioridad.push({distX[vecino],vecino,from});
			}
			else if(!v[vecino][from]&&from==1){
				prioridad.push({distY[vecino],vecino,from});
			}
		}
	}
	return ans;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 91 ms 56916 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -