Submission #294987

#	Time	Username	Problem	Language	Result	Execution time	Memory
294987		theStaticMind	Split the Attractions (IOI19_split)	C++14	18 / 100	128 ms	12024 KiB

split

#include<bits/stdc++.h>
#include "split.h"

using namespace std;

vector<int> ans;
vector<int> adj[100000];

void greedy(int x, int& rem, int v){
	if(!rem) return;
	ans[x] = v;
	rem--;
	for(auto y : adj[x]){
		if(ans[y]) continue;
		greedy(y, rem, v);
	}
}

vector<int> find_split(int n, int a, int b, int c, vector<int> u, vector<int> v) {
	ans = vector<int>(n, 0);
	int w[3] = {a, b, c};
	vector<int> q = {0, 1, 2};
	sort(q.begin(), q.end(), [&](int x, int y){return w[x] < w[y];});

	for(int i = 0; i < u.size(); i++){
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}

	greedy(0, w[q[1]], q[1] + 1);
	for(int i = 0; i < n; i++){
		if(!ans[i]){
			greedy(i, w[q[0]], q[0] + 1);
			break;
		}
	}
	for(int i = 0; i < n; i++){
		if(!ans[i]) ans[i] = q[2] + 1;
	}

	return ans;
}

Compilation message (stderr)

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:25:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for(int i = 0; i < u.size(); i++){
      |                 ~~^~~~~~~~~~

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