Submission #1082649

#	Time	Username	Problem	Language	Result	Execution time	Memory
1082649		BlueGlaucus1	Bosses (BOI16_bosses)	C++17	100 / 100	426 ms	856 KiB

bosses

#include <iostream>
#include <vector>
#include <queue>
using namespace std;
bool visited[5005];
int levels[5005];
vector<int> vw[5005];


int main(){
    int n; cin >> n;
    for(int i =1; i <=n;i++){
        int a; cin >> a;
        for(int l =0; l <a;l++){
            int k; cin >> k;
            vw[k].push_back(i);
        }
    }
    int answer=1000000000;
    for(int i = 1; i <=n;i++){
        int count = 0;
        queue<int> a;
        int temp = 0;
        fill(visited, visited+n+3, 0);
        fill(levels, levels+n+3, 0);
        a.push(i);
        levels[i] = 1;
        visited[i] = true;
        while(!a.empty()){
            count++;
            int f = a.front();
            a.pop();
            temp +=levels[f];
            for(int k = 0; k <vw[f].size();k++){
            int va= vw[f][k];
            if(!visited[va]){
                levels[va] = levels[f] + 1;
                visited[va] = 1;
                a.push(va);
            }
    }
        }
        if(count==n){
    answer = min(answer, temp);
        }
    }
    cout << answer;
}

Compilation message (stderr)

bosses.cpp: In function 'int main()':
bosses.cpp:34:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |             for(int k = 0; k <vw[f].size();k++){
      |                            ~~^~~~~~~~~~~~~

• Subtask 1: 22 / 22
• Subtask 2: 45 / 45
• Subtask 3: 33 / 33