oj.uz

Submission #237249

# Submission time Handle Problem Language Result Execution time Memory
237249 2020-06-05T12:44:29 Z Autoratch Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 749 ms 47516 KB 
#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int> 

const int N = 1e5 + 1;

vector<pair<int,int> > adj[N];
vector<int> ep;
bool epp[N];
priority_queue<pii,vector<pii>,greater<pii> > q;
int dist[N],dis1[N],dis2[N];
bool visited[N];

int travel_plan(int n,int m,int r[][2],int l[],int k,int p[])
{
    for(int i = 0;i < m;i++)
    {
        int a = r[i][0],b = r[i][1],d = l[i];
        adj[a].push_back({d,b});
        adj[b].push_back({d,a});
    }
    for(int i = 0;i < k;i++) ep.push_back(p[i]);
    for(int i = 0;i < n;i++) dist[i] = dis1[i] = dis2[i] = INT_MAX;
    for(int x : ep) dist[x] = dis1[x] = dis2[x] = 0,q.push({0,x}),epp[x] = true;
    while(!q.empty())
    {
        int u = q.top().second;
        q.pop();
        if(visited[u]) continue;
        visited[u] = true;
        for(auto [d,v] : adj[u]) if(dist[u]+d<dist[v]) dist[v] = dist[u]+d,q.push({dist[v],v});
    }
    for(int i = 0;i < n;i++) visited[i] = false;
    for(int x : ep) q.push({0,x});
    while(!q.empty())
    {
        int u = q.top().second;
        q.pop();
        if(visited[u]) continue;
        visited[u] = true;
        if(dis2[u]==INT_MAX) continue;
        for(auto [d,v] : adj[u])
        {
            if(dis2[u]+d<dis1[v]) dis2[v] = dis1[v],dis1[v] = dis2[u]+d,q.push({dis2[v],v});
            else if(dis2[u]+d<dis2[v]) dis2[v] = dis2[u]+d,q.push({dis2[v],v});
        }
    }
    return dis2[0];
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:32:18: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
         for(auto [d,v] : adj[u]) if(dist[u]+d<dist[v]) dist[v] = dist[u]+d,q.push({dist[v],v});
                  ^
crocodile.cpp:43:18: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
         for(auto [d,v] : adj[u])
                  ^

Subtask #1
46.0 / 46.0

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

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 7 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 7 ms 2816 KB Output is correct
8 Correct 7 ms 2816 KB Output is correct
9 Correct 8 ms 2944 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 7 ms 2816 KB Output is correct
12 Correct 10 ms 3200 KB Output is correct
13 Correct 9 ms 3072 KB Output is correct
14 Correct 6 ms 2816 KB Output is correct
15 Correct 7 ms 2816 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 7 ms 2816 KB Output is correct
5 Correct 7 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 7 ms 2816 KB Output is correct
8 Correct 7 ms 2816 KB Output is correct
9 Correct 8 ms 2944 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 7 ms 2816 KB Output is correct
12 Correct 10 ms 3200 KB Output is correct
13 Correct 9 ms 3072 KB Output is correct
14 Correct 6 ms 2816 KB Output is correct
15 Correct 7 ms 2816 KB Output is correct
16 Correct 579 ms 42332 KB Output is correct
17 Correct 118 ms 12128 KB Output is correct
18 Correct 171 ms 13556 KB Output is correct
19 Correct 749 ms 47516 KB Output is correct
20 Correct 338 ms 36728 KB Output is correct
21 Correct 57 ms 6904 KB Output is correct
22 Correct 389 ms 32380 KB Output is correct