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Submission #878826

# Submission time Handle Problem Language Result Execution time Memory
878826 2023-11-25T09:44:34 Z TahirAliyev Chessboard (IZhO18_chessboard) C++17
70 / 100
 260 ms 4224 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pii pair<ll, ll>
#define oo 1e12
#define int ll


int n, k;
const int MAX = 1e5 + 5;
vector<pii> black;

vector<int> s;

void solve(){
    cin >> n >> k;
    for(int i = 1; i <= k; i++){
        int a, b; cin >> a >> b >> a >> b;
        black.push_back({a, b});
    }
    s.push_back(1);
    for(int d = 2; d * d <= n; d++){
        if(n % d == 0){
            s.push_back(d);
            if(n / d != d){
                s.push_back(n / d);
            }
        }
    }
    int ans = oo;
    for(int a : s){
        int tmp1 = ((n / a) * (n / a) + 1) / 2 * a * a;
        int tmp2 = ((n / a) * (n / a)) / 2 * a * a;
        for(pii b : black){
            int x = (b.first - 1) / a + 1;
            int y = (b.second - 1) / a + 1;
            if(x % 2 == y % 2){
                tmp1--;
                tmp2++;
            }
            else{
                tmp1++;
                tmp2--;
            }
        }
        ans = min(tmp1, ans);
        ans = min(tmp2, ans);
    }
    cout << ans << '\n';
}

signed main(){
    int t = 1;
    while(t--){
        solve();
    }
}

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 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 1484 KB Output is correct
2 Correct 14 ms 1240 KB Output is correct
3 Correct 32 ms 2328 KB Output is correct
4 Correct 31 ms 2248 KB Output is correct
5 Correct 43 ms 2340 KB Output is correct
6 Correct 27 ms 2252 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 28 ms 2248 KB Output is correct
9 Correct 73 ms 4224 KB Output is correct
10 Correct 39 ms 2184 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 360 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 360 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 18 ms 1236 KB Output is correct
17 Correct 52 ms 2500 KB Output is correct
18 Correct 62 ms 2500 KB Output is correct
19 Correct 85 ms 2512 KB Output is correct
20 Correct 93 ms 2504 KB Output is correct
21 Correct 48 ms 2592 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 29 ms 1512 KB Output is correct
24 Correct 56 ms 2536 KB Output is correct
25 Correct 6 ms 604 KB Output is correct
26 Correct 35 ms 1524 KB Output is correct
27 Correct 45 ms 2596 KB Output is correct
28 Correct 59 ms 3632 KB Output is correct
29 Correct 21 ms 1480 KB Output is correct
30 Correct 2 ms 344 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 1484 KB Output is correct
2 Correct 14 ms 1240 KB Output is correct
3 Correct 32 ms 2328 KB Output is correct
4 Correct 31 ms 2248 KB Output is correct
5 Correct 43 ms 2340 KB Output is correct
6 Correct 27 ms 2252 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 28 ms 2248 KB Output is correct
9 Correct 73 ms 4224 KB Output is correct
10 Correct 39 ms 2184 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 360 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 18 ms 1236 KB Output is correct
27 Correct 52 ms 2500 KB Output is correct
28 Correct 62 ms 2500 KB Output is correct
29 Correct 85 ms 2512 KB Output is correct
30 Correct 93 ms 2504 KB Output is correct
31 Correct 48 ms 2592 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 29 ms 1512 KB Output is correct
34 Correct 56 ms 2536 KB Output is correct
35 Correct 6 ms 604 KB Output is correct
36 Correct 35 ms 1524 KB Output is correct
37 Correct 45 ms 2596 KB Output is correct
38 Correct 59 ms 3632 KB Output is correct
39 Correct 21 ms 1480 KB Output is correct
40 Correct 2 ms 344 KB Output is correct
41 Correct 92 ms 3780 KB Output is correct
42 Correct 78 ms 3840 KB Output is correct
43 Correct 79 ms 3696 KB Output is correct
44 Correct 76 ms 3560 KB Output is correct
45 Correct 79 ms 3780 KB Output is correct
46 Correct 103 ms 3664 KB Output is correct
47 Correct 68 ms 3780 KB Output is correct
48 Correct 80 ms 4016 KB Output is correct
49 Correct 69 ms 3668 KB Output is correct
50 Correct 237 ms 3860 KB Output is correct
51 Correct 252 ms 4064 KB Output is correct
52 Correct 236 ms 3780 KB Output is correct
53 Correct 250 ms 3780 KB Output is correct
54 Correct 231 ms 3780 KB Output is correct
55 Correct 260 ms 3828 KB Output is correct
56 Correct 225 ms 3524 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 55 ms 1484 KB Output is correct
10 Correct 14 ms 1240 KB Output is correct
11 Correct 32 ms 2328 KB Output is correct
12 Correct 31 ms 2248 KB Output is correct
13 Correct 43 ms 2340 KB Output is correct
14 Correct 27 ms 2252 KB Output is correct
15 Correct 6 ms 604 KB Output is correct
16 Correct 28 ms 2248 KB Output is correct
17 Correct 73 ms 4224 KB Output is correct
18 Correct 39 ms 2184 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 360 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 18 ms 1236 KB Output is correct
35 Correct 52 ms 2500 KB Output is correct
36 Correct 62 ms 2500 KB Output is correct
37 Correct 85 ms 2512 KB Output is correct
38 Correct 93 ms 2504 KB Output is correct
39 Correct 48 ms 2592 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 29 ms 1512 KB Output is correct
42 Correct 56 ms 2536 KB Output is correct
43 Correct 6 ms 604 KB Output is correct
44 Correct 35 ms 1524 KB Output is correct
45 Correct 45 ms 2596 KB Output is correct
46 Correct 59 ms 3632 KB Output is correct
47 Correct 21 ms 1480 KB Output is correct
48 Correct 2 ms 344 KB Output is correct
49 Correct 92 ms 3780 KB Output is correct
50 Correct 78 ms 3840 KB Output is correct
51 Correct 79 ms 3696 KB Output is correct
52 Correct 76 ms 3560 KB Output is correct
53 Correct 79 ms 3780 KB Output is correct
54 Correct 103 ms 3664 KB Output is correct
55 Correct 68 ms 3780 KB Output is correct
56 Correct 80 ms 4016 KB Output is correct
57 Correct 69 ms 3668 KB Output is correct
58 Correct 237 ms 3860 KB Output is correct
59 Correct 252 ms 4064 KB Output is correct
60 Correct 236 ms 3780 KB Output is correct
61 Correct 250 ms 3780 KB Output is correct
62 Correct 231 ms 3780 KB Output is correct
63 Correct 260 ms 3828 KB Output is correct
64 Correct 225 ms 3524 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Incorrect 0 ms 348 KB Output isn't correct
67 Halted 0 ms 0 KB -