Submission #699546

#	Time	Username	Problem	Language	Result	Execution time	Memory
699546		amin	Crocodile's Underground City (IOI11_crocodile)	C++14	100 / 100	646 ms	71872 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    //cout<<1000000<<endl;
    int n=N;
    int m=M;
    vector<int>v[n],c[n];
    int co[n];

    for(int i=0;i<n;i++)
    {
        co[i]=0;
    }
    for(int i=0;i<m;i++)
    {
        int x=R[i][0];
        int y=R[i][1];
       // x--;
       // y--;
        v[x].push_back(y);
        v[y].push_back(x);
        c[x].push_back(L[i]);
        c[y].push_back(L[i]);


    }
    priority_queue<pair<int,int> >pq;
    int vis[n];

    for(int i=0;i<K;i++)
    {
       // P[i]--;
        co[P[i]]=1;
        pq.push({0,P[i]});

    }
    while(!pq.empty())
    {
        int val=-pq.top().first;
        int in=pq.top().second;
        //Acout<<in<<endl;
        pq.pop();
        if(co[in]==1)
        {
            co[in]++;
            if(in==0)
            {
                return val;
            }
        }else
        if(co[in]==0)
        {
            co[in]++;
            continue;
        }else
        continue;

        for(int i=0;i<v[in].size();i++)
        {
            pq.push({-(val+c[in][i]),v[in][i]});

        }

    }







}

Compilation message (stderr)

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         for(int i=0;i<v[in].size();i++)
      |                     ~^~~~~~~~~~~~~
crocodile.cpp:30:9: warning: unused variable 'vis' [-Wunused-variable]
   30 |     int vis[n];
      |         ^~~
crocodile.cpp:74:1: warning: control reaches end of non-void function [-Wreturn-type]
   74 | }
      | ^

• Subtask 1: 46 / 46
• Subtask 2: 43 / 43
• Subtask 3: 11 / 11