Submission #147636

#	Time	Username	Problem	Language	Result	Execution time	Memory
147636		nandonathaniel	Split the Attractions (IOI19_split)	C++14	11 / 100	114 ms	10872 KiB

split

#include "split.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN=100005;
int cntB,warna[MAXN];
vector<int> adj[MAXN];
bool visited[MAXN];
int brp=0;
bool keluar=false;
void dfs(int now){
	//cout << "now " << now << endl;
	if(brp==cntB)return;
	visited[now]=true;
	warna[now]=2;
	brp++;
	for(int i=0;i<adj[now].size();i++){
		int nxt=adj[now][i];
		if(!visited[nxt]){
			dfs(nxt);
		}
	}
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	memset(visited,0,sizeof(visited));
	memset(warna,0,sizeof(warna));
	cntB=b;
	vector<int> res;
	for(int i=0;i<p.size();i++){
		adj[p[i]].push_back(q[i]);
		adj[q[i]].push_back(p[i]);
	}
	dfs(0);
	bool sudah=false;
	for(int i=0;i<n;i++){
		if(warna[i]==0){
			if(!sudah){
				warna[i]=1;
				sudah=true;
			}
			else warna[i]=3;
		}
		res.push_back(warna[i]);
	}
	return res;
}

Compilation message (stderr)

split.cpp: In function 'void dfs(int)':
split.cpp:16:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<adj[now].size();i++){
              ~^~~~~~~~~~~~~~~~
split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:29:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<p.size();i++){
              ~^~~~~~~~~

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