Submission #822948

#	Time	Username	Problem	Language	Result	Execution time	Memory
822948		MohamedAhmed04	Triangles (CEOI18_tri)	C++14	15 / 100	69 ms	2004 KiB

tri

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

using namespace std ;

const int MAX = 50 + 10 ;

int N ;

int mark[MAX][MAX][MAX] ;

int main()
{
	N = get_n() ;
	for(int i = 1 ; i <= N ; ++i)
	{
		for(int j = 1 ; j <= N ; ++j)
		{
			for(int k = 1 ; k <= N ; ++k)
			{
				if(i == j || i == k || j == k)
					continue ;
				mark[i][j][k] = is_clockwise(i , j , k) ;
			}
		}
	}
	int ans = 0 ;
	for(int i = 1 ; i <= N ; ++i)
	{
		int cnt0 = 0 , cnt1 = 0 ;
		for(int j = 1 ; j <= N ; ++j)
		{
			bool flag0 = (j != i) , flag1 = (j != i) ;
			for(int k = 1 ; k <= N ; ++k)
			{
				if(i == j || i == k || j == k)
					continue ;
				flag0 &= (!mark[i][j][k]) ;
				flag1 &= (mark[i][j][k]) ;
			}
			cnt0 += flag0 , cnt1 += flag1 ;
		}
		ans += (cnt0 && cnt1) ;
	}
	give_answer(ans) ;
}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 25