Submission #817074

#	Time	Username	Problem	Language	Result	Execution time	Memory
817074		vjudge1	Split the Attractions (IOI19_split)	C++17	7 / 100	55 ms	18252 KiB

split

#include "split.h"
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <bitset>
#include <array>
#include <iomanip>
using namespace std;

const int nax = (int)200'001;
vector<int>adj[nax];

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	
	for (int i = 0; i < p.size(); i++){
		adj[p[i]].push_back(q[i]);
		adj[q[i]].push_back(p[i]);
	}
	vector<int>res(n);
	vector<int>visited(n, 0);
	int cnt = 0;
	function<void(int,int)>dfs = [&](int u, int p){
		if (visited[u])return;
		if (cnt < a)res[u] = 1;
		else if (cnt < a + b)res[u] = 2;
		else if (cnt < a + b + c)res[u] = 3;
		cnt++;
		//cout << cnt << endl;
		visited[u] = 1;
		for (int x : adj[u]){
			if (x == p)continue;
			dfs(x,u);
		}
	};
	dfs(0,0);
	return res;
}

Compilation message (stderr)

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:30:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for (int i = 0; i < p.size(); i++){
      |                  ~~^~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36