제출 #211482

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
211482		andremfq	악어의 지하 도시 (IOI11_crocodile)	C++17	0 / 100	2091 ms	5632 KiB

crocodile

#include "crocodile.h"
#include <vector>
#include <utility>
#include <queue>
using namespace std;
const int MAXN = 112345;//, MAXM = 1123456;
 
std::vector<int> grafo [MAXN];
std::vector<int> grafop[MAXN];
int marc[MAXN];
 
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    for(int i = 0; i < M; i++){
        int u, v, w;
        u = R[i][0];
        v = R[i][1];
        w = L[i];
        grafo[u].push_back(v);
        grafo[v].push_back(u);
        grafop[u].push_back(w);
        grafop[v].push_back(w);
    }
    priority_queue<pair<long long, int>, vector<pair<long long, int> >, greater<pair<long long, int > > > q;
    for(int i = 0; i < K; i++){
        q.push(make_pair(0, P[i]));
        marc[P[i]] = 1;
    }
    long long ans = 0;
    while(!q.empty()){
        int v = q.top().second;
        long long c = q.top().first;
 
        if(!marc[v]){
            marc[v] = 1;
            continue;
        }if(marc[v] == 2) continue;
        if(v == 0){
            ans  = c;
            break;
        }
 
        marc[v] = 2;
        for(int i = 0; i < grafo[v].size(); i++){
            int viz = grafo[v][i];
            long long p = c + grafop[v][i];
            if(marc[viz] == 2) continue;
            q.push(make_pair(p, viz));
 
        }
 
    }
 
 
    return (int) ans;
}

컴파일 시 표준 에러 (stderr) 메시지

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:44:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < grafo[v].size(); i++){
                        ~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11