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Submission #255407

# Submission time Handle Problem Language Result Execution time Memory
255407 2020-07-31T21:41:59 Z hhh07 Crocodile's Underground City (IOI11_crocodile) C++14
89 / 100
 755 ms 77160 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
#include <utility>
#include <set>
#include <cmath>
#include <climits>
#include <cstring>
#include "crocodile.h"
 
using namespace std;
 
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll, ll> ii;

vector<vector<ii>> adjList(100007, vector<ii>());
const int INF = 1e9 + 7;
int travel_plan(int n, int m, int r[][2], int l[], int k, int p[]){
    for (ll i = 0; i < m; i++){
        adjList[r[i][0]].push_back(make_pair(r[i][1], l[i]));
        adjList[r[i][1]].push_back(make_pair(r[i][0], l[i]));
    }
    
    vector<ii> t(n, {INF, INF});
    priority_queue<ii, vector<ii>, greater<ii>> pq;
    for (ll i = 0; i < k; i++){
        t[p[i]] = {0, 0};
        pq.push({0, p[i]});
    }
    
    while(!pq.empty()){
        auto curr = pq.top();
        pq.pop();
        if (t[curr.second].first < curr.first)
            continue;
        for (ll i = 0; i < adjList[curr.second].size(); i++){
            ll d = adjList[curr.second][i].second, idx = adjList[curr.second][i].first;
            ll val = t[curr.second].first + d;

            if (val <= t[idx].second){
                t[idx].first = t[idx].second;
                t[idx].second = val;
                pq.push({t[idx].first, idx});
            }
            else if (val < t[idx].first){
                t[idx].first = val;
                pq.push({t[idx].first, idx});
            }
            
        }
    }
    
    
    return t[0].first;
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:38:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (ll i = 0; i < adjList[curr.second].size(); i++){
                        ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2816 KB Output is correct
5 Correct 2 ms 2816 KB Output is correct
6 Correct 2 ms 2816 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 2 ms 2816 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2816 KB Output is correct
5 Correct 2 ms 2816 KB Output is correct
6 Correct 2 ms 2816 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 2 ms 2816 KB Output is correct
9 Correct 4 ms 3072 KB Output is correct
10 Correct 2 ms 2688 KB Output is correct
11 Correct 3 ms 2816 KB Output is correct
12 Correct 6 ms 3328 KB Output is correct
13 Correct 5 ms 3456 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 3 ms 2816 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2816 KB Output is correct
5 Correct 2 ms 2816 KB Output is correct
6 Correct 2 ms 2816 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 2 ms 2816 KB Output is correct
9 Correct 4 ms 3072 KB Output is correct
10 Correct 2 ms 2688 KB Output is correct
11 Correct 3 ms 2816 KB Output is correct
12 Correct 6 ms 3328 KB Output is correct
13 Correct 5 ms 3456 KB Output is correct
14 Correct 2 ms 2688 KB Output is correct
15 Correct 3 ms 2816 KB Output is correct
16 Correct 572 ms 68712 KB Output is correct
17 Correct 124 ms 16620 KB Output is correct
18 Correct 142 ms 18904 KB Output is correct
19 Correct 755 ms 77160 KB Output is correct
20 Correct 364 ms 54520 KB Output is correct
21 Correct 51 ms 9080 KB Output is correct
22 Incorrect 417 ms 50664 KB Output isn't correct