oj.uz

Submission #878740

# Submission time Handle Problem Language Result Execution time Memory
878740 2023-11-25T06:56:16 Z Elvin_Fritl Chessboard (IZhO18_chessboard) C++17
39 / 100
 99 ms 3668 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define io                      \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);

 
typedef long long ll;
 
ll bp(ll n,ll m){
    if(m == 0){
        return 1;
    }
    if(m == 1){
        return n;
    }
    if(m%2==0){
        return bp(n*n,m/2);
    }
    return n*bp(n,m-1);
}

 
const int N =  2505, M = 33, inf = 1e9 + 99;
const ll inff = 1e12;
 
int main()
{
	io;
	
	int n, k; 
	cin >> n >> k;
	ll res = n * n;
	ll a[k][4];
	for(int i=0;i<k;i++) {
		cin >> a[i][0] >> a[i][1] >> a[i][2] >> a[i][3];
	}
	for(int m=1;m<n;m++) {
		if(!(n % m)) { 
			ll tmp = (m * (n / (2 * m)) + min(m, n % (2 * m))) * (n - (m * (n / (2 * m)) + min(m, n % (2 * m)))) + (1LL * m * (n / (2 * m)) + min(1LL * m, 1LL * n % (2 * m))) * (n - (m * (n / (2LL * m)) + min(m, n % (2 * m))));
			for(int i=0;i<k;i++) {
				ll u = a[i][2] - a[i][0] + 1;
				ll x = (m * (a[i][2] / (2 * m)) + min(1LL * m, 1LL * a[i][2] % (2 * m))) - (m * ((a[i][0] - 1) / (2 * m)) + min(1LL * m,1LL *  (a[i][0] - 1) % (2LL * m)));
				ll v = a[i][3] - a[i][1] + 1;
				ll y = (m * (a[i][3] / (2 * m)) + min(1LL * m, 1LL * a[i][3] % (2 * m))) - (1LL * m * ((a[i][1] - 1) / (2 * m)) + min(1LL * m, 1LL * (a[i][1] - 1) % (2LL * m)));;
				tmp += 2 * (x * y + (u - x) * (v - y)) - u * v;
			}
			res = min(res, min(tmp, n * n - tmp));
		}
	}
	cout << res << endl;
    
    return 0;
 
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 2412 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 8 ms 1112 KB Output is correct
17 Correct 20 ms 3088 KB Output is correct
18 Correct 28 ms 3420 KB Output is correct
19 Correct 85 ms 3164 KB Output is correct
20 Correct 99 ms 3416 KB Output is correct
21 Correct 19 ms 2980 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 18 ms 1780 KB Output is correct
24 Correct 26 ms 3160 KB Output is correct
25 Correct 4 ms 604 KB Output is correct
26 Correct 19 ms 2140 KB Output is correct
27 Correct 25 ms 2392 KB Output is correct
28 Correct 27 ms 3668 KB Output is correct
29 Correct 8 ms 1368 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 2412 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 17 ms 2412 KB Output isn't correct
10 Halted 0 ms 0 KB -