제출 #239564

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
239564		MrRobot_28	Birokracija (COCI18_birokracija)	C++17	100 / 100	201 ms	33192 KiB

birokracija

#include <bits/stdc++.h>
using namespace std;
#define int long long
vector <vector <int> > g;
vector <int> ans;
vector <int> sum, _size, h;
void dfs(int v, int p = -1)
{
	_size[v] = 1;
	sum[v] = 0;
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(to != p)
		{
			h[to] = h[v] + 1;
			dfs(to, v);
			_size[v] += _size[to];
			sum[v] += sum[to];
		}
	}
	sum[v] += h[v] + 1;
	ans[v] = sum[v] - _size[v] * h[v];
}
signed main()
{
//	ios_base::sync_with_stdio(false);
//	cin.tie(NULL);
//	cout.tie(NULL);
	int n;
	cin >> n;
	g.resize(n);
	ans.resize(n);
	sum.resize(n);
	_size.resize(n);
	h.resize(n);
	for(int i = 1; i < n; i++)
	{
		int p;
		cin >> p;
		p--;
		g[p].push_back(i);
	}
	dfs(0, -1);
	for(int i = 0; i < n; i++)
	{
		cout << ans[i] << " ";
	}
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

birokracija.cpp: In function 'void dfs(long long int, long long int)':
birokracija.cpp:11:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10