Submission #92939

#	Time	Username	Problem	Language	Result	Execution time	Memory
92939		Makhsud	Chessboard (IZhO18_chessboard)	C++17	0 / 100	74 ms	380 KiB

chessboard

#include <bits/stdc++.h>
#define ll long long
using namespace std;

ll n, k, x, y, xx, yy;
ll d, mn = INT_MAX;

ll ch ( ll del ) {
	ll ans = 0;
	if ( del == 1 ) {
		return (n*n)/2;
	}
	for ( int i = 1; i <= (n/del); i ++ ) {
		if ( i % 2 == 1 ) {
			ans += (del*del) * ( (n/del) / 2 );
		}
		else {
			ans += (del*del) * ( ( ( n + 1 ) / del ) / 2 );
		}
	}
	return ans;
}

int main()
{
	cin >> n >> k;
	for ( int i = 1; i <= k; i ++ ) {
		cin >> x >> y >> xx >> yy;
	}
	for ( int i = 1; i < n; i ++ ) {
		if ( n % i == 0 ) {
			mn = min ( mn, ch(i) );
		}
	}
	cout << mn;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30