Submission #91838

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
91838	2018-12-30 09:53:06	emil_physmath	Chessboard (IZhO18_chessboard)	C++17	100 / 100	1868 ms	3960 KiB

chessboard

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#include <iostream>
#include <stdio.h>
using namespace std;
const int MAXK=100005;
long long mini[MAXK], maxi[MAXK], minj[MAXK], maxj[MAXK];
long long NumWhite(long long, long long, long long, long long, long long cellLen);
long long FindAns(long long n, long long k, long long cellLen);
int main()
{
  long long n, k;
  cin>>n>>k;
  for (int i=0; i<k; i++)
    scanf("%lld%lld%lld%lld", mini+i, minj+i, maxi+i, maxj+i);
  long long  ans=n*n;
  for (int cellLen=1; cellLen*cellLen<=n; cellLen++)
    if (n%cellLen==0)
    {
      ans=min(ans, FindAns(n, k, cellLen));
      ans=min(ans, FindAns(n, k, n/cellLen));
    }
  cout<<ans<<'\n';
 
  char I;
  cin >> I;
  return 0;
}
 
long long FindAns(long long n, long long k, long long cellLen)
 
 
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Compilation message (stderr)

chessboard.cpp: In function 'int main()':
chessboard.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld%lld%lld", mini+i, minj+i, maxi+i, maxj+i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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