Submission #292230

#	Time	Username	Problem	Language	Result	Execution time	Memory
292230		Abdelrahman	Bosses (BOI16_bosses)	C++17	100 / 100	615 ms	768 KiB

bosses

#include <bits/stdc++.h>
#define endl '\n'
#define modulo 1000000007
//#define int long long
#pragma GCC optimize("-Ofast")
#define float double
#define PI 3.141592653589793238462643383279502884
#define sinDegrees(x) sin((x) * PI / 180.0)
#define tanDegrees(x) tan((x) * PI / 180.0)
#define atanDegrees(x) atan(x)* 180.0 / PI

using namespace std;

vector<int> children[5001];
bool visited[5001] = {0};
int mini=INT_MAX;
int finale = 0, done=0;

void solve(int emp)
{
    vector<pair<int, int> > v;
    visited[emp]=1;
    v.push_back({emp, 1});
    done++;
    finale++;
    int x=0;
    while (x!=v.size())
    {
        if (finale>mini)
            break;
        auto p = v[x];
        for (int i=0;i<children[p.first].size();i++)
        {
            int a = children[p.first][i];
            //cout<<a<<" ";
            if (visited[a])
                continue;
            done++;
            visited[a]=1;
            v.push_back({a, p.second+1});
            finale+=p.second+1;
        }
        x++;
    }

}

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin>>n;

    for (int i=0;i<n;i++)
    {
        int a;
        cin>>a;
        while (a--)
        {
            int b;
            cin>>b;
            children[b-1].push_back(i);
        }
    }



    for (int i=0;i<n;i++)
    {
        solve(i);
        if (done==n)
        {
            mini = min(finale, mini);
        }
        memset(visited, 0, sizeof(visited));
        finale = 0;
        done=0;
    }

    cout<<mini;



}

Compilation message (stderr)

bosses.cpp: In function 'void solve(int)':
bosses.cpp:27:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     while (x!=v.size())
      |            ~^~~~~~~~~~
bosses.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for (int i=0;i<children[p.first].size();i++)
      |                      ~^~~~~~~~~~~~~~~~~~~~~~~~~

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