oj.uz

Submission #299230

# Submission time Handle Problem Language Result Execution time Memory
299230 2020-09-14T15:14:28 Z TMJN Split the Attractions (IOI19_split) C++17
22 / 100
 108 ms 11768 KB 
#include "split.h"
#include <bits/stdc++.h>
using namespace std;

int c[100000],par[100000];
vector<int>e[100000];
vector<int>res;

void dfs(int x,int from){
	par[x]=from;
	c[x]=1;
	for(int i:e[x]){
		if(i==from)continue;
		dfs(i,x);
		c[x]+=c[i];
	}
}

vector<int>find_split(int n,int aaa,int bbb,int ccc,vector<int>p,vector<int>q){
	res=vector<int>(n,0);
	pair<int,int>P[3];
	P[0]={aaa,1};
	P[1]={bbb,2};
	P[2]={ccc,3};
	sort(P,P+3);
	for(int i=0;i<p.size();i++){
		e[p[i]].push_back(q[i]);
		e[q[i]].push_back(p[i]);
	}
	if(P[0].first==1){
		queue<int>que;
		que.push(0);
		while(P[1].first){
			int x=que.front();
			que.pop();
			if(res[x])continue;
			res[x]=P[1].second;
			P[1].first--;
			for(int i:e[x]){
				que.push(i);
			}
		}
		for(int i=0;i<n;i++){
			if(!res[i]){
				res[i]=P[0].second;
				break;
			}
		}
		for(int i=0;i<n;i++){
			if(!res[i]){
				res[i]=P[2].second;
			}
		}
	}
	else if(p.size()==n-1){
		dfs(0,0);
		pair<int,int>mn={0xE869120,-1};
		for(int i=0;i<n;i++){
			if(c[i]>=P[0].first){
				mn=min(mn,{c[i],i});
			}
			if(n-c[i]>=P[0].first){
				mn=min(mn,{n-c[i],-i});
			}
		}
		if(mn.second==0){
		}
		else if(mn.second>0){
			queue<int>que;
			que.push(mn.second);
			res[par[mn.second]]=0xE869120;
			while(P[0].first){
				int x=que.front();
				que.pop();
				if(!res[x]){
					res[x]=P[0].second;
						P[0].first--;
					for(int i:e[x]){
						que.push(i);
					}
				}
			}
			res[par[mn.second]]=0;
			while(!que.empty())que.pop();
			que.push(par[mn.second]);
			while(!que.empty()&&P[1].first){
				int x=que.front();
				que.pop();
				if(!res[x]){
					res[x]=P[1].second;
					P[1].first--;
					for(int i:e[x]){
						que.push(i);
					}
				}
			}
			if(!P[1].first){
				for(int i=0;i<n;i++){
					if(!res[i])res[i]=P[2].second;
				}
			}
			else{
				for(int i=0;i<n;i++){
					res[i]=0;
				}
			}
		}
		else{
			queue<int>que;
			que.push(par[-mn.second]);
			res[-mn.second]=0xE869120;
			while(P[0].first){
				int x=que.front();
				que.pop();
				if(!res[x]){
					res[x]=P[0].second;
					P[0].first--;
					for(int i:e[x]){
						que.push(i);
					}
				}
			}
			res[-mn.second]=0;
			while(!que.empty())que.pop();
			que.push(-mn.second);
			while(!que.empty()&&P[1].first){
				int x=que.front();
				que.pop();
				if(!res[x]){
					res[x]=P[1].second;
					P[1].first--;
					for(int i:e[x]){
						que.push(i);
					}
				}
			}
			if(!P[1].first){
				for(int i=0;i<n;i++){
					if(!res[i])res[i]=P[2].second;
				}
			}
			else{
				for(int i=0;i<n;i++){
					res[i]=0;
				}
			}
		}
	}
	if(p.size()==n){
		queue<int>que;
		que.push(0);
		while(P[0].first){
			int x=que.front();
			que.pop();
			if(!res[x]){
				P[0].first--;
				res[x]=P[0].second;
				for(int i:e[x]){
					que.push(i);
				}
			}
		}
		while(!que.empty())que.pop();
		for(int i=0;i<n;i++){
			if(!res[i]){
				que.push(i);
				while(P[1].first){
					int x=que.front();
					que.pop();
					if(!res[x]){
						P[1].first--;
						res[x]=P[1].second;
						for(int j:e[x]){
							que.push(j);
						}
					}
				}
				break;
			}
		}
		for(int i=0;i<n;i++){
			if(!res[i])res[i]=P[2].second;
		}
	}
	return res;
}

Compilation message

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:26:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int i=0;i<p.size();i++){
      |              ~^~~~~~~~~
split.cpp:55:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   55 |  else if(p.size()==n-1){
      |          ~~~~~~~~^~~~~
split.cpp:149:13: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  149 |  if(p.size()==n){
      |     ~~~~~~~~^~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB ok, correct split
2 Runtime error 5 ms 5160 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB ok, correct split
2 Runtime error 6 ms 5248 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB ok, correct split
2 Correct 89 ms 9080 KB ok, correct split
3 Correct 28 ms 5496 KB ok, correct split
4 Correct 2 ms 2688 KB ok, correct split
5 Correct 97 ms 11000 KB ok, correct split
6 Correct 100 ms 10744 KB ok, correct split
7 Correct 105 ms 10616 KB ok, correct split
8 Correct 98 ms 11768 KB ok, correct split
9 Correct 108 ms 10488 KB ok, correct split
10 Correct 24 ms 4864 KB ok, no valid answer
11 Correct 35 ms 6016 KB ok, no valid answer
12 Correct 67 ms 9332 KB ok, no valid answer
13 Correct 78 ms 9080 KB ok, no valid answer
14 Correct 62 ms 9408 KB ok, no valid answer

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2688 KB jury found a solution, contestant did not
2 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB ok, correct split
2 Runtime error 5 ms 5160 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -