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Submission #523572

# Submission time Handle Problem Language Result Execution time Memory
523572 2022-02-07T19:41:01 Z RaresFelix Chessboard (IZhO18_chessboard) C++17
47 / 100
 2000 ms 1796 KB 
#include <iostream>
#include <climits>
#include <tuple>
#include <vector>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define MN 107171

using namespace std;
using ll = long long;
ll n, k;
tuple<int, int, int, int> R[MN];

static inline ll calc(ll a, ll b, ll l) {
    if(a % l == 0 && b % l == 0)
        return ((a / l) * (b / l) + 1) / 2 * l * l;
    if(a % l) {
        ll nrseg;
        if(a / l % 2ll == 0) {
            if(b % (2ll * l) <= l) nrseg = (b / (2ll * l)) * l + b % (2 * l);
            else nrseg = (b / (2ll * l) + 1) * l;
        } else {
            if(b % (2ll * l) <= l) nrseg = (b / (2ll * l)) * l;
            else nrseg = (b / (2ll * l) - 1) * l + b % (2 * l);
        }
        return calc(a - (a % l), b, l) + (a % l) * nrseg;
    }
    return calc(b, a, l);
}
ll sol(ll l) {
    ll arie = ((n / l) * (n / l) + 1) / 2 * l * l, selec;
    for(int i = 1; i <= k; ++i) {
        auto &[a, b, c, d] = R[i];
        selec = calc(c, d, l) + calc(a-1, b-1, l) - calc(c, b-1, l) - calc(a-1, d, l);
        arie += (c - a + 1) * (d - b + 1) - 2 * selec;
    }
    return min(arie, 1ll * n * n - arie);
}
int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin >> n >> k;
    for(int i = 1, a, b, c, d; i <= k; ++i)
        cin >> a >> b >> c >> d, R[i] = make_tuple(a, b, c, d);
    ll re = LLONG_MAX;
    for(int i = 1; i < n; ++i)
        if(n % i == 0) re = min(re, sol(i));
    cout << re << "\n";
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 1292 KB Output is correct
2 Correct 5 ms 460 KB Output is correct
3 Correct 15 ms 860 KB Output is correct
4 Correct 14 ms 924 KB Output is correct
5 Correct 18 ms 1172 KB Output is correct
6 Correct 12 ms 868 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 13 ms 844 KB Output is correct
9 Correct 33 ms 1720 KB Output is correct
10 Correct 17 ms 1004 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 19 ms 748 KB Output is correct
17 Correct 23 ms 1544 KB Output is correct
18 Correct 57 ms 1740 KB Output is correct
19 Correct 387 ms 1692 KB Output is correct
20 Correct 449 ms 1756 KB Output is correct
21 Correct 25 ms 1556 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 53 ms 972 KB Output is correct
24 Correct 54 ms 1696 KB Output is correct
25 Correct 11 ms 452 KB Output is correct
26 Correct 34 ms 1100 KB Output is correct
27 Correct 60 ms 1356 KB Output is correct
28 Correct 56 ms 1796 KB Output is correct
29 Correct 9 ms 744 KB Output is correct
30 Correct 2 ms 332 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 1292 KB Output is correct
2 Correct 5 ms 460 KB Output is correct
3 Correct 15 ms 860 KB Output is correct
4 Correct 14 ms 924 KB Output is correct
5 Correct 18 ms 1172 KB Output is correct
6 Correct 12 ms 868 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 13 ms 844 KB Output is correct
9 Correct 33 ms 1720 KB Output is correct
10 Correct 17 ms 1004 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 19 ms 748 KB Output is correct
27 Correct 23 ms 1544 KB Output is correct
28 Correct 57 ms 1740 KB Output is correct
29 Correct 387 ms 1692 KB Output is correct
30 Correct 449 ms 1756 KB Output is correct
31 Correct 25 ms 1556 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 53 ms 972 KB Output is correct
34 Correct 54 ms 1696 KB Output is correct
35 Correct 11 ms 452 KB Output is correct
36 Correct 34 ms 1100 KB Output is correct
37 Correct 60 ms 1356 KB Output is correct
38 Correct 56 ms 1796 KB Output is correct
39 Correct 9 ms 744 KB Output is correct
40 Correct 2 ms 332 KB Output is correct
41 Correct 363 ms 1592 KB Output is correct
42 Correct 68 ms 1768 KB Output is correct
43 Correct 172 ms 1600 KB Output is correct
44 Correct 63 ms 1720 KB Output is correct
45 Correct 45 ms 1724 KB Output is correct
46 Correct 391 ms 1748 KB Output is correct
47 Correct 29 ms 1604 KB Output is correct
48 Correct 127 ms 1660 KB Output is correct
49 Correct 60 ms 1604 KB Output is correct
50 Execution timed out 2061 ms 1708 KB Time limit exceeded
51 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 23 ms 1292 KB Output is correct
10 Correct 5 ms 460 KB Output is correct
11 Correct 15 ms 860 KB Output is correct
12 Correct 14 ms 924 KB Output is correct
13 Correct 18 ms 1172 KB Output is correct
14 Correct 12 ms 868 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 13 ms 844 KB Output is correct
17 Correct 33 ms 1720 KB Output is correct
18 Correct 17 ms 1004 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 19 ms 748 KB Output is correct
35 Correct 23 ms 1544 KB Output is correct
36 Correct 57 ms 1740 KB Output is correct
37 Correct 387 ms 1692 KB Output is correct
38 Correct 449 ms 1756 KB Output is correct
39 Correct 25 ms 1556 KB Output is correct
40 Correct 2 ms 332 KB Output is correct
41 Correct 53 ms 972 KB Output is correct
42 Correct 54 ms 1696 KB Output is correct
43 Correct 11 ms 452 KB Output is correct
44 Correct 34 ms 1100 KB Output is correct
45 Correct 60 ms 1356 KB Output is correct
46 Correct 56 ms 1796 KB Output is correct
47 Correct 9 ms 744 KB Output is correct
48 Correct 2 ms 332 KB Output is correct
49 Correct 363 ms 1592 KB Output is correct
50 Correct 68 ms 1768 KB Output is correct
51 Correct 172 ms 1600 KB Output is correct
52 Correct 63 ms 1720 KB Output is correct
53 Correct 45 ms 1724 KB Output is correct
54 Correct 391 ms 1748 KB Output is correct
55 Correct 29 ms 1604 KB Output is correct
56 Correct 127 ms 1660 KB Output is correct
57 Correct 60 ms 1604 KB Output is correct
58 Execution timed out 2061 ms 1708 KB Time limit exceeded
59 Halted 0 ms 0 KB -