Submission #51104

#	Time	Username	Problem	Language	Result	Execution time	Memory
51104		Yusup01	Chessboard (IZhO18_chessboard)	C++17	23 / 100	43 ms	4744 KiB

chessboard

#include<bits/stdc++.h>
using namespace std;
int i,j,k,l,m,jog,jog1=1000009,a[1009][1009],x[10009],y[10009],x2[10009],y2[10009],u,p,t,n;
int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n>>k;
	for(int i=1; i<=k; i++)
	{
		cin>>x[i]>>y[i]>>x2[i]>>y2[i];
		if(a[x[i]][y[i]]!=1) u++; a[x[i]][y[i]]=1;
	}
	for(int t=1; t<=n/2; t++)
	{
		if(n%t==0)
		{
			jog=0; p=u; m=0;
			for(int i=1; i<=n; i++)
			{
				m++;
				for(int j=1; j<=n; j++)
				{
					if(m<=t&&j==1) l=0; else if(m>t&&j==1) l=t; l++;
					if(l<=t)
					{
						if(a[i][j]!=1) jog++;
						else p--;
					}
					if(l==t*2) l=0; 
				}
				if(m==t*2) m=0;
			}
			jog1=min(jog1,jog+p); jog=0; p=u; m=0;
			for(int i=1; i<=n; i++)
			{
				m++;
				for(int j=1; j<=n; j++)
				{
					if(m<=t&&j==1) l=t; else if(m>t&&j==1) l=0; l++;
					if(l<=t)
					{
						if(a[i][j]!=1) jog++;
						else p--;
					}
					if(l==t*2) l=0; 
				}
				if(m==t*2) m=0;
			}
			jog1=min(jog1,jog+p);
		}
	}
	cout<<jog1;
}

Compilation message (stderr)

chessboard.cpp: In function 'int main()':
chessboard.cpp:11:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(a[x[i]][y[i]]!=1) u++; a[x[i]][y[i]]=1;
   ^~
chessboard.cpp:11:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   if(a[x[i]][y[i]]!=1) u++; a[x[i]][y[i]]=1;
                             ^

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