oj.uz

Submission #48840

# Submission time Handle Problem Language Result Execution time Memory
48840 2018-05-19T09:23:07 Z mrtsima22 Chessboard (IZhO18_chessboard) C++17
39 / 100
 62 ms 2260 KB 
#include <bits/stdc++.h>
using namespace std;
#define lo long
const int lmax=1999999999;
const long long lmx=1999999999999999999;
int n,k;
long long ans=lmx,ansT;
int a[100003],b[100003],c[100003],d[100004];
int main(){std::ios::sync_with_stdio(false);
cin>>n>>k;
ansT=0LL;
for(long long i=0;i<k;i++)
{
	cin>>a[i]>>b[i]>>c[i]>>d[i];
a[i]--,b[i]--,c[i]--,d[i]--;	
}
ans=lmax;
  for(int j = 1; j < n; ++j)
    if(n % j == 0) { 
      ansT = 0;
      for(int i = 0; i < k; ++i)
        if((a[i]/j + b[i]/j) % 2 == 0)
          ++ansT;
      ansT = ansT * 2 - k;
      if(ansT + (long long)n * n / j / j / 2 * j * j < ans)
        ans = ansT + (long long)n * n / j / j / 2 * j * j;
      ansT = -ansT;
      if(ansT + ((long long)n * n / j / j + 1) / 2 * j * j < ans)
        ans = ansT + ((long long)n * n / j / j + 1) / 2 * j * j;
    }
//cout<<ansT+K-ansS<<" "<<ansS+k-ansT<<endl;

cout<<ans<<endl;
}
/*

                   *         *
                  * *       * *
                 *   *     *   *
                *     *   *     *
               *       * *       *
               *        *        *
                *               *
                 *             *
                  *           *
                   *         *
                    *       *
                     *     *
                      *   *
                       * *
                        *



*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 472 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 564 KB Output is correct
8 Correct 2 ms 564 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 1460 KB Output is correct
2 Correct 9 ms 1460 KB Output is correct
3 Incorrect 20 ms 1460 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1460 KB Output is correct
2 Correct 2 ms 1460 KB Output is correct
3 Correct 2 ms 1460 KB Output is correct
4 Correct 3 ms 1460 KB Output is correct
5 Correct 3 ms 1460 KB Output is correct
6 Correct 2 ms 1460 KB Output is correct
7 Correct 2 ms 1460 KB Output is correct
8 Correct 2 ms 1460 KB Output is correct
9 Correct 3 ms 1460 KB Output is correct
10 Correct 2 ms 1460 KB Output is correct
11 Correct 2 ms 1460 KB Output is correct
12 Correct 2 ms 1460 KB Output is correct
13 Correct 2 ms 1460 KB Output is correct
14 Correct 2 ms 1460 KB Output is correct
15 Correct 3 ms 1460 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1460 KB Output is correct
2 Correct 2 ms 1460 KB Output is correct
3 Correct 2 ms 1460 KB Output is correct
4 Correct 3 ms 1460 KB Output is correct
5 Correct 3 ms 1460 KB Output is correct
6 Correct 2 ms 1460 KB Output is correct
7 Correct 2 ms 1460 KB Output is correct
8 Correct 2 ms 1460 KB Output is correct
9 Correct 3 ms 1460 KB Output is correct
10 Correct 2 ms 1460 KB Output is correct
11 Correct 2 ms 1460 KB Output is correct
12 Correct 2 ms 1460 KB Output is correct
13 Correct 2 ms 1460 KB Output is correct
14 Correct 2 ms 1460 KB Output is correct
15 Correct 3 ms 1460 KB Output is correct
16 Correct 15 ms 1460 KB Output is correct
17 Correct 35 ms 1876 KB Output is correct
18 Correct 39 ms 2260 KB Output is correct
19 Correct 49 ms 2260 KB Output is correct
20 Correct 56 ms 2260 KB Output is correct
21 Correct 32 ms 2260 KB Output is correct
22 Correct 3 ms 2260 KB Output is correct
23 Correct 20 ms 2260 KB Output is correct
24 Correct 62 ms 2260 KB Output is correct
25 Correct 6 ms 2260 KB Output is correct
26 Correct 26 ms 2260 KB Output is correct
27 Correct 36 ms 2260 KB Output is correct
28 Correct 41 ms 2260 KB Output is correct
29 Correct 15 ms 2260 KB Output is correct
30 Correct 5 ms 2260 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 1460 KB Output is correct
2 Correct 9 ms 1460 KB Output is correct
3 Incorrect 20 ms 1460 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 472 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 564 KB Output is correct
8 Correct 2 ms 564 KB Output is correct
9 Correct 31 ms 1460 KB Output is correct
10 Correct 9 ms 1460 KB Output is correct
11 Incorrect 20 ms 1460 KB Output isn't correct
12 Halted 0 ms 0 KB -