답안 #381710

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
381710	2021-03-25T18:17:45 Z	MohamedAhmed04	Political Development (BOI17_politicaldevelopment)	C++14	27 / 100	302 ms	312684 KB

politicaldevelopment

#include <bits/stdc++.h>

using namespace std ;

const int MAX = 5e4 + 10 ;

vector<int>v[MAX] ;
int n , k ;

int ans = 0 ;

vector<int>taken ;
bitset<MAX>mark[MAX] ;

bool check(int x)
{
	for(auto &i : taken)
	{
		if(!mark[x][i])
			return false ;
	}
	return true ;
}

void solve(vector<int>&v1 , int idx)
{
	if(idx == v1.size())
	{
		ans = max(ans , (int)(taken.size())) ;
		return ;
	}
	if(check(v1[idx]))
	{
		taken.push_back(v1[idx]) ;
		solve(v1 , idx+1) ;
		taken.pop_back() ;
	}
	solve(v1 , idx+1) ;
}

int main()
{
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n>>k ;
	for(int i = 0 ; i < n ; ++i)
	{
		int sz ;
		cin>>sz ;
		v[i].resize(sz) ;
		for(auto &j : v[i])
		{
			cin>>j ;
			mark[i][j] = 1 ;
		}
	}
	for(int i = 0 ; i < n ; ++i)
	{
		if(v[i].size() < k)
		{
			taken.push_back(i) ;
			solve(v[i] , 0) ;
			taken.pop_back() ;
		}
	}
	return cout<<ans<<"\n" , 0 ;
}

Compilation message

politicaldevelopment.cpp: In function 'void solve(std::vector<int>&, int)':
politicaldevelopment.cpp:27:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  if(idx == v1.size())
      |     ~~~~^~~~~~~~~~~~
politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:59:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   59 |   if(v[i].size() < k)
      |      ~~~~~~~~~~~~^~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1516 KB	Output is correct
2	Correct	2 ms	1516 KB	Output is correct
3	Correct	16 ms	22636 KB	Output is correct
4	Correct	15 ms	21868 KB	Output is correct
5	Correct	14 ms	21868 KB	Output is correct
6	Correct	14 ms	21868 KB	Output is correct
7	Correct	14 ms	21868 KB	Output is correct
8	Correct	2 ms	1516 KB	Output is correct
9	Correct	2 ms	1516 KB	Output is correct
10	Correct	2 ms	1516 KB	Output is correct

Subtask #2
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1516 KB	Output is correct
2	Correct	2 ms	1516 KB	Output is correct
3	Correct	16 ms	22636 KB	Output is correct
4	Correct	15 ms	21868 KB	Output is correct
5	Correct	14 ms	21868 KB	Output is correct
6	Correct	14 ms	21868 KB	Output is correct
7	Correct	14 ms	21868 KB	Output is correct
8	Correct	2 ms	1516 KB	Output is correct
9	Correct	2 ms	1516 KB	Output is correct
10	Correct	2 ms	1516 KB	Output is correct
11	Correct	14 ms	21868 KB	Output is correct
12	Correct	14 ms	21868 KB	Output is correct
13	Correct	2 ms	1516 KB	Output is correct
14	Correct	14 ms	21868 KB	Output is correct
15	Correct	2 ms	1516 KB	Output is correct
16	Correct	14 ms	21868 KB	Output is correct
17	Correct	2 ms	1516 KB	Output is correct
18	Correct	14 ms	21868 KB	Output is correct
19	Correct	2 ms	1516 KB	Output is correct
20	Correct	14 ms	21740 KB	Output is correct
21	Correct	14 ms	21740 KB	Output is correct
22	Correct	2 ms	1536 KB	Output is correct
23	Incorrect	16 ms	22892 KB	Output isn't correct
24	Halted	0 ms	0 KB	-

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1516 KB	Output is correct
2	Correct	2 ms	1644 KB	Output is correct
3	Correct	2 ms	1644 KB	Output is correct
4	Correct	2 ms	1516 KB	Output is correct
5	Correct	2 ms	1644 KB	Output is correct
6	Correct	2 ms	1644 KB	Output is correct
7	Correct	2 ms	1644 KB	Output is correct
8	Correct	2 ms	1644 KB	Output is correct
9	Correct	2 ms	1644 KB	Output is correct
10	Correct	2 ms	1664 KB	Output is correct
11	Correct	296 ms	312556 KB	Output is correct
12	Correct	2 ms	1644 KB	Output is correct
13	Correct	295 ms	312540 KB	Output is correct
14	Correct	2 ms	1644 KB	Output is correct
15	Correct	302 ms	312556 KB	Output is correct
16	Correct	300 ms	312556 KB	Output is correct
17	Correct	292 ms	312556 KB	Output is correct
18	Correct	296 ms	312684 KB	Output is correct

Subtask #4
0 / 38.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1516 KB	Output is correct
2	Correct	2 ms	1516 KB	Output is correct
3	Correct	16 ms	22636 KB	Output is correct
4	Correct	15 ms	21868 KB	Output is correct
5	Correct	14 ms	21868 KB	Output is correct
6	Correct	14 ms	21868 KB	Output is correct
7	Correct	14 ms	21868 KB	Output is correct
8	Correct	2 ms	1516 KB	Output is correct
9	Correct	2 ms	1516 KB	Output is correct
10	Correct	2 ms	1516 KB	Output is correct
11	Correct	14 ms	21868 KB	Output is correct
12	Correct	14 ms	21868 KB	Output is correct
13	Correct	2 ms	1516 KB	Output is correct
14	Correct	14 ms	21868 KB	Output is correct
15	Correct	2 ms	1516 KB	Output is correct
16	Correct	14 ms	21868 KB	Output is correct
17	Correct	2 ms	1516 KB	Output is correct
18	Correct	14 ms	21868 KB	Output is correct
19	Correct	2 ms	1516 KB	Output is correct
20	Correct	14 ms	21740 KB	Output is correct
21	Correct	14 ms	21740 KB	Output is correct
22	Correct	2 ms	1536 KB	Output is correct
23	Incorrect	16 ms	22892 KB	Output isn't correct
24	Halted	0 ms	0 KB	-

Subtask #5
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1516 KB	Output is correct
2	Correct	2 ms	1516 KB	Output is correct
3	Correct	16 ms	22636 KB	Output is correct
4	Correct	15 ms	21868 KB	Output is correct
5	Correct	14 ms	21868 KB	Output is correct
6	Correct	14 ms	21868 KB	Output is correct
7	Correct	14 ms	21868 KB	Output is correct
8	Correct	2 ms	1516 KB	Output is correct
9	Correct	2 ms	1516 KB	Output is correct
10	Correct	2 ms	1516 KB	Output is correct
11	Correct	14 ms	21868 KB	Output is correct
12	Correct	14 ms	21868 KB	Output is correct
13	Correct	2 ms	1516 KB	Output is correct
14	Correct	14 ms	21868 KB	Output is correct
15	Correct	2 ms	1516 KB	Output is correct
16	Correct	14 ms	21868 KB	Output is correct
17	Correct	2 ms	1516 KB	Output is correct
18	Correct	14 ms	21868 KB	Output is correct
19	Correct	2 ms	1516 KB	Output is correct
20	Correct	14 ms	21740 KB	Output is correct
21	Correct	14 ms	21740 KB	Output is correct
22	Correct	2 ms	1536 KB	Output is correct
23	Incorrect	16 ms	22892 KB	Output isn't correct
24	Halted	0 ms	0 KB	-

답안 #381710

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 38.0

Subtask #5 0 / 23.0

Subtask #1
4.0 / 4.0

Subtask #2
0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 38.0

Subtask #5
0 / 23.0