#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;
int a[100003],b[100003],c[100003],d[100004];
int main(){std::ios::sync_with_stdio(false);
cin>>n>>k;
if(k==0LL){
ans=n*n/2;
for(long long j=2;j<=n/2+1;j++)
{
if(n%j==0)
{
long long k=n/j;
k=k*k;
ans=min(ans,j*j/2*k);
}
}
cout<<ans<<endl;
return 0;
}
ansT=ansS=0;
for(int i=0;i<k;i++)
{
cin>>a[i]>>b[i]>>c[i]>>d[i];
if(a[i]==c[i]&&b[i]==d[i])
{
if((a[i]+b[i])&1)
{
ansT++;
}
else
{
ansS++;
}
}
}
k=n*n/2;
long long K=k;
if(n&1)K++;
ans=min(ansT+K-ansS,ansS+k-ansT);
cout<<ans<<endl;
}
/*
* *
* * * *
* * * *
* * * *
* * * *
* * *
* *
* *
* *
* *
* *
* *
* *
* *
*
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
428 KB |
Output is correct |
4 |
Correct |
2 ms |
556 KB |
Output is correct |
5 |
Correct |
3 ms |
556 KB |
Output is correct |
6 |
Correct |
2 ms |
556 KB |
Output is correct |
7 |
Correct |
2 ms |
556 KB |
Output is correct |
8 |
Correct |
2 ms |
556 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
1492 KB |
Output is correct |
2 |
Correct |
11 ms |
1492 KB |
Output is correct |
3 |
Correct |
19 ms |
2536 KB |
Output is correct |
4 |
Correct |
22 ms |
3488 KB |
Output is correct |
5 |
Correct |
31 ms |
5008 KB |
Output is correct |
6 |
Correct |
21 ms |
5548 KB |
Output is correct |
7 |
Correct |
7 ms |
5548 KB |
Output is correct |
8 |
Correct |
32 ms |
6440 KB |
Output is correct |
9 |
Correct |
80 ms |
9440 KB |
Output is correct |
10 |
Correct |
30 ms |
9924 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
9924 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
9924 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
1492 KB |
Output is correct |
2 |
Correct |
11 ms |
1492 KB |
Output is correct |
3 |
Correct |
19 ms |
2536 KB |
Output is correct |
4 |
Correct |
22 ms |
3488 KB |
Output is correct |
5 |
Correct |
31 ms |
5008 KB |
Output is correct |
6 |
Correct |
21 ms |
5548 KB |
Output is correct |
7 |
Correct |
7 ms |
5548 KB |
Output is correct |
8 |
Correct |
32 ms |
6440 KB |
Output is correct |
9 |
Correct |
80 ms |
9440 KB |
Output is correct |
10 |
Correct |
30 ms |
9924 KB |
Output is correct |
11 |
Incorrect |
2 ms |
9924 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
428 KB |
Output is correct |
4 |
Correct |
2 ms |
556 KB |
Output is correct |
5 |
Correct |
3 ms |
556 KB |
Output is correct |
6 |
Correct |
2 ms |
556 KB |
Output is correct |
7 |
Correct |
2 ms |
556 KB |
Output is correct |
8 |
Correct |
2 ms |
556 KB |
Output is correct |
9 |
Correct |
30 ms |
1492 KB |
Output is correct |
10 |
Correct |
11 ms |
1492 KB |
Output is correct |
11 |
Correct |
19 ms |
2536 KB |
Output is correct |
12 |
Correct |
22 ms |
3488 KB |
Output is correct |
13 |
Correct |
31 ms |
5008 KB |
Output is correct |
14 |
Correct |
21 ms |
5548 KB |
Output is correct |
15 |
Correct |
7 ms |
5548 KB |
Output is correct |
16 |
Correct |
32 ms |
6440 KB |
Output is correct |
17 |
Correct |
80 ms |
9440 KB |
Output is correct |
18 |
Correct |
30 ms |
9924 KB |
Output is correct |
19 |
Incorrect |
2 ms |
9924 KB |
Output isn't correct |
20 |
Halted |
0 ms |
0 KB |
- |