Submission #234873

#	Time	Username	Problem	Language	Result	Execution time	Memory
234873		Nodir_Bobiev	Crocodile's Underground City (IOI11_crocodile)	C++14	89 / 100	391 ms	35684 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;

vector < pair < int, int > > gr[1111];
long long dist[1111];

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
	for(int i = 0; i < M; i ++ ){
		gr[R[i][0]].push_back({L[i], R[i][1]});
		gr[R[i][1]].push_back({L[i], R[i][0]});
	}
	for( int i = 0; i < N; i ++ ){
		dist[i] = 2e9;
	}
	for( int i = 0; i < K; i ++ ){
		dist[P[i]] = 0;
	}
	for( int j = 0; j < N; j ++ ){
		for( int i = 0; i < N; i ++ ){
			long long min1 = 2e9, min2 = 2e9;
			for( auto edge: gr[i] ){
				int cost = edge.first, to = edge.second;
				if(dist[to]+cost<min1){
					min2 = min1;
					min1 = dist[to] + cost;
				}
				else if( dist[to]+cost<min2){
					min2 = dist[to] + cost;
				}
			}
			//cout << "--> " << j << " : " << i << ' ' << min1 << ' ' << min2<<endl;
			dist[i] = min(dist[i], min2);
		}
	}
	/*
	for( int i = 0; i < N; i ++ ){
		cout << i << ' ' << dist[i] << endl;
	}*/
	return dist[0];
}

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