Submission #308539

#	Time	Username	Problem	Language	Result	Execution time	Memory
308539		kylych03	Crocodile's Underground City (IOI11_crocodile)	C++14	0 / 100	1 ms	384 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
vector <pair <int, int > > g[1002];
int inf =1e9+7;
pair <int, int> a[100001];
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    for(int i = 0; i <=N; i++){
        a[i].first=inf;
        a[i].second=inf;
    }
    deque <int >deq;
    for(int i  = 0 ; i < M ;i++){
        g[R[i][0]].push_back(make_pair (R[i][1], L[i]) );
        g[R[i][1]].push_back( make_pair (R[i][0], L[i]));
    }
    for(int i = 0; i < K; i++){

        deq.push_back(P[i]);
        a[P[i]] = make_pair (0,0);
    }
    while(!deq.empty()){
        int v = deq.front();
        deq.pop_front();
        int len = a[v].second;
        for(int i= 0 ; i< g[v].size() ; i++ ){
            int to = g[v][i].first;
            int dis = g[v][i].second;
            if(a[to].second > len + dis){
                a[to].second = len + dis;
                if(a[to].first > a[to].second)
                    swap(a[to].first, a[to].second);
                if(a[to].second!=inf)
                deq.push_back(to);
            }
        }

    }

    return a[0].second;

}
/*

5 4 3
0 1 2
0 2 3
3 2 1
2 4 4
1 3 4
*/

Compilation message (stderr)

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:28:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int i= 0 ; i< g[v].size() ; i++ ){
      |                        ~^~~~~~~~~~~~~

• Subtask 1: 0 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11