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Submission #465467

# Submission time Handle Problem Language Result Execution time Memory
465467 2021-08-16T07:53:28 Z MohamedFaresNebili Crocodile's Underground City (IOI11_crocodile) C++14
0 / 100
 1 ms 204 KB 
#include <bits/stdc++.h>
#include "crocodile.h"
 
using namespace std;
 
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    int n=N, m=M, k=K; vector<pair<long long, int>>adj[n]; vector<int> dis(n, -1);
    vector<bool>exit(n, false); vector<long long>d(n, 1e9); queue<int>q;
    priority_queue<pair<long long, int>, vector<pair<long long, int>>, greater<pair<long long, int>>>pq;
    for(int l=0;l<m;l++) {
        int a=R[l][0], b=R[l][1]; long long w=L[l];
        adj[a].push_back({b, w});
        adj[b].push_back({a, w});
    }
    for(int l=0;l<k;l++) {
        int a=P[l]; dis[a]=0;
        pq.push({0, a}); d[a]=0; q.push(a);
    }
    vector<bool>queued(n, false);
    vector<long long>len[n]; vector<int>income(n, 0);
    while(!pq.empty()) {
        int a=pq.top().second; long long w=pq.top().second;
        pq.pop(); queued[a]=true;
        for(auto u:adj[a]) {
            int to=u.first; long long s=u.second;
            if(queued[to]) continue;
            len[to].push_back(d[a]+s); income[to]++;
            if(income[to]>1) {
                sort(len[to].begin(), len[to].end());
                pq.push({len[to][1], to});
                d[to]=len[to][1];
            }
        }
    }
    return (d[0]!=1e9?d[0]:-1);
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:23:42: warning: unused variable 'w' [-Wunused-variable]
   23 |         int a=pq.top().second; long long w=pq.top().second;
      |                                          ^

Subtask #1
0 / 46.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 43.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -