oj.uz

Submission #48835

# Submission time Handle Problem Language Result Execution time Memory
48835 2018-05-19T09:00:28 Z mrtsima22 Chessboard (IZhO18_chessboard) C++17
39 / 100
 139 ms 17480 KB 
#include <bits/stdc++.h>
using namespace std;
#define lo long
const int lmax=1999999999;
const long long lmx=1999999999999999999;
long long n;
long long k;
long long ans=lmax,ansT,ansS;
long long a[100003],b[100003],c[100003],d[100004];
vector<long long>v;
long long k1;
int main(){std::ios::sync_with_stdio(false);
cin>>n>>k;
ansT=ansS=0LL;
for(long long i=1LL;i<n;i++)
{
	if(n%i==0)
	{
		v.push_back(i);
	}
}
	ansT=ansS=0;
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=0;j<v.size();j++){
long long p=v[j];
ansS=ansT=0;

for(int i=0;i<k;i++)
{
	{
		long long q1=(a[i])/p;
		long long q2=(b[i])/p;
		long long q=q1+q2;
		if((q)%2==0)
		{
			ansT++;
		}
		else
		{
			ansS++;
		}
	}	
}
long long O=ansT-ansS;
//---------------
long long o=n/v[j];
//--------------
if(O+n*n/v[j]/v[j]/2*v[j]*v[j]<ans)
ans=O+n*n/v[j]/v[j]/2*v[j]*v[j];
O=ansS-ansT;
if(O+(n*n/v[j]/v[j]+1)/2*v[j]*v[j]<ans)
ans=O+(n*n/v[j]/v[j]+1)/2*v[j]*v[j];
}
//cout<<ansT+K-ansS<<" "<<ansS+k-ansT<<endl;

cout<<ans<<endl;
}
/*

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



*/

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:29:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j=0;j<v.size();j++){
             ~^~~~~~~~~
chessboard.cpp:51:11: warning: unused variable 'o' [-Wunused-variable]
 long long o=n/v[j];
           ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 2 ms 392 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 2 ms 672 KB Output is correct
7 Correct 2 ms 672 KB Output is correct
8 Correct 2 ms 672 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 2532 KB Output is correct
2 Correct 10 ms 2532 KB Output is correct
3 Incorrect 22 ms 2532 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 2532 KB Output is correct
2 Correct 2 ms 2532 KB Output is correct
3 Correct 2 ms 2532 KB Output is correct
4 Correct 3 ms 2532 KB Output is correct
5 Correct 2 ms 2532 KB Output is correct
6 Correct 2 ms 2532 KB Output is correct
7 Correct 4 ms 2532 KB Output is correct
8 Correct 3 ms 2532 KB Output is correct
9 Correct 3 ms 2532 KB Output is correct
10 Correct 2 ms 2532 KB Output is correct
11 Correct 3 ms 2532 KB Output is correct
12 Correct 2 ms 2532 KB Output is correct
13 Correct 3 ms 2532 KB Output is correct
14 Correct 3 ms 2532 KB Output is correct
15 Correct 4 ms 2532 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2532 KB Output is correct
2 Correct 2 ms 2532 KB Output is correct
3 Correct 2 ms 2532 KB Output is correct
4 Correct 3 ms 2532 KB Output is correct
5 Correct 2 ms 2532 KB Output is correct
6 Correct 2 ms 2532 KB Output is correct
7 Correct 4 ms 2532 KB Output is correct
8 Correct 3 ms 2532 KB Output is correct
9 Correct 3 ms 2532 KB Output is correct
10 Correct 2 ms 2532 KB Output is correct
11 Correct 3 ms 2532 KB Output is correct
12 Correct 2 ms 2532 KB Output is correct
13 Correct 3 ms 2532 KB Output is correct
14 Correct 3 ms 2532 KB Output is correct
15 Correct 4 ms 2532 KB Output is correct
16 Correct 16 ms 2532 KB Output is correct
17 Correct 39 ms 5292 KB Output is correct
18 Correct 58 ms 7296 KB Output is correct
19 Correct 123 ms 8640 KB Output is correct
20 Correct 139 ms 10692 KB Output is correct
21 Correct 40 ms 11216 KB Output is correct
22 Correct 2 ms 11216 KB Output is correct
23 Correct 34 ms 11216 KB Output is correct
24 Correct 51 ms 13608 KB Output is correct
25 Correct 8 ms 13608 KB Output is correct
26 Correct 39 ms 13792 KB Output is correct
27 Correct 44 ms 15100 KB Output is correct
28 Correct 52 ms 17480 KB Output is correct
29 Correct 26 ms 17480 KB Output is correct
30 Correct 5 ms 17480 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 2532 KB Output is correct
2 Correct 10 ms 2532 KB Output is correct
3 Incorrect 22 ms 2532 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 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 2 ms 392 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 2 ms 672 KB Output is correct
7 Correct 2 ms 672 KB Output is correct
8 Correct 2 ms 672 KB Output is correct
9 Correct 35 ms 2532 KB Output is correct
10 Correct 10 ms 2532 KB Output is correct
11 Incorrect 22 ms 2532 KB Output isn't correct
12 Halted 0 ms 0 KB -