oj.uz

Submission #153105

# Submission time Handle Problem Language Result Execution time Memory
153105 2019-09-12T12:03:27 Z mhy908 Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 899 ms 94340 KB 
#include "crocodile.h"
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define inf 987654321987654321
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
int n, m, k;
vector<pair<int, LL> > link[100010];
LL dijk[100010][3];
bool ch[100010];
priority_queue<pair<LL, int> >pq;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    n=N;
    m=M;
    k=K;
    for(int i=0; i<m; i++){
        link[R[i][0]+1].pb(make_pair(R[i][1]+1, (LL)L[i]));
        link[R[i][1]+1].pb(make_pair(R[i][0]+1, (LL)L[i]));
    }
    for(int i=1; i<=n; i++)dijk[i][1]=dijk[i][2]=inf;
    for(int i=0; i<k; i++)dijk[P[i]+1][1]=dijk[P[i]+1][2]=0, pq.push(make_pair(0, +P[i]+1));
    while(!pq.empty()){
        int here=pq.top().S;
        LL c=-pq.top().F;
        pq.pop();
        if(ch[here])continue;
        ch[here]=true;
        for(int i=0; i<link[here].size(); i++){
            int next=link[here][i].F;
            LL cost=link[here][i].S;
            if(ch[next])continue;
            if(dijk[next][1]>c+cost){
                dijk[next][2]=dijk[next][1];
                dijk[next][1]=c+cost;
                pq.push(make_pair(-dijk[next][2], next));
            }
            else if(dijk[next][2]>c+cost){
                dijk[next][2]=c+cost;
                pq.push(make_pair(-dijk[next][2], next));
            }
        }
    }
    return (int)dijk[1][2];
}

/*
5 7 2
0 2 4
0 3 3
3 2 2
2 1 10
0 1 100
0 4 7
3 4 9
1
3
14
*/

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0; i<link[here].size(); i++){
                      ~^~~~~~~~~~~~~~~~~~

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 5 ms 2680 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 5 ms 2680 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 7 ms 3064 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 5 ms 2936 KB Output is correct
12 Correct 9 ms 3448 KB Output is correct
13 Correct 8 ms 3448 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 5 ms 2680 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 7 ms 3064 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 5 ms 2936 KB Output is correct
12 Correct 9 ms 3448 KB Output is correct
13 Correct 8 ms 3448 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 695 ms 85204 KB Output is correct
17 Correct 132 ms 20676 KB Output is correct
18 Correct 171 ms 23256 KB Output is correct
19 Correct 899 ms 94340 KB Output is correct
20 Correct 391 ms 67572 KB Output is correct
21 Correct 62 ms 10744 KB Output is correct
22 Correct 445 ms 64960 KB Output is correct