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Submission #644266

# Submission time Handle Problem Language Result Execution time Memory
644266 2022-09-24T10:10:44 Z ToroTN Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 583 ms 64728 KB 
#include "crocodile.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
#define X first
#define Y second
int n,m,k,p[100005],y,cost,d[100005][2],u,vis[100005],deg[100005];
vector<pair<int,int> > g[100005];
priority_queue<pair<int,int> > pq;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    n=N;
    for(int i=1;i<=n;i++)
    {
        d[i][0]=1e9;
        d[i][1]=1e9;
    }
    m=M;
    for(int i=0;i<m;i++)
    {
        g[R[i][0]+1].pb({R[i][1]+1,L[i]});
        g[R[i][1]+1].pb({R[i][0]+1,L[i]});
    }
    k=K;
    for(int i=0;i<k;i++)
    {
        p[i+1]=P[i]+1;
    }
    for(int i=1;i<=k;i++)
    {
        d[p[i]][0]=0;
        d[p[i]][1]=0;
        pq.push({0,p[i]});
    }
    /*while(!pq.empty())
    {
        printf("%d %d\n",pq.top().X,pq.top().Y);
        pq.pop();
    }*/
    while(!pq.empty())
    {
        u=pq.top().Y;
        //printf("%d %d %d\n",u,d[u][0],d[u][1]);
        pq.pop();
        if(vis[u]==1)continue;
        vis[u]=1;
        for(auto [y,cost]:g[u])
        {
            // if(d[y][0]==2e9&&d[y][1]==2e9)
            // {
            //     d[y][0]=d[u][1]+cost;
            //     d[y][1]=d[u][1]+cost;
            //     pq.push({-d[y][1],y});
            //     continue;
            // }
            if(d[u][1]+cost<=d[y][0])
            {
                d[y][1]=d[y][0];
                d[y][0]=d[u][1]+cost;
            }else if(d[u][1]+cost<d[y][1])
            {
                d[y][1]=d[u][1]+cost;
            }
             if(++deg[y]>=2&&vis[y]==0)
                {
                    pq.push({-d[y][1],y});
                }
        }
    }
    return d[1][1];
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:49:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   49 |         for(auto [y,cost]:g[u])
      |                  ^

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 3 ms 2900 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2716 KB Output is correct
12 Correct 6 ms 3180 KB Output is correct
13 Correct 5 ms 3316 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 3 ms 2772 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 3 ms 2900 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2716 KB Output is correct
12 Correct 6 ms 3180 KB Output is correct
13 Correct 5 ms 3316 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 3 ms 2772 KB Output is correct
16 Correct 534 ms 64728 KB Output is correct
17 Correct 65 ms 14464 KB Output is correct
18 Correct 81 ms 15928 KB Output is correct
19 Correct 583 ms 63924 KB Output is correct
20 Correct 366 ms 53748 KB Output is correct
21 Correct 33 ms 7920 KB Output is correct
22 Correct 353 ms 46336 KB Output is correct