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Submission #523574

# Submission time Handle Problem Language Result Execution time Memory
523574 2022-02-07T19:50:11 Z RaresFelix Chessboard (IZhO18_chessboard) C++17
70 / 100
 875 ms 7352 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];
ll P[MN], D[MN];
ll P2[MN], D2[MN];
static inline ll calc(ll a, ll b, ll l) {
    if(P[a] == 0 && P[b] == 0)
        return ((D[a] * D[b] + 1) >> 1) * l * l;
    if(P[a]) {
        ll nrseg;
        if((D[a] & 1) == 0) {
            if(P2[b] <= l) nrseg = D2[b] * l + P2[b];
            else nrseg = (D2[b] + 1) * l;
        } else {
            if(P2[b] <= l) nrseg = D2[b] * l;
            else nrseg = (D2[b] - 1) * l + P2[b];
        }
        return calc(a - P[a], b, l) + P[a] * nrseg;
    }
    return calc(b, a, l);
}
ll sol(ll l) {
    for(int i = 1; i <= n; ++i) {
        D[i] = D[i-1];
        P[i] = P[i-1] + 1;
        if(P[i] == l) ++D[i], P[i] = 0;
        D2[i] = D2[i-1];
        P2[i] = P2[i-1] + 1;
        if(P2[i] == (l << 1)) ++D2[i], P2[i] = 0;
    }
    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 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 3148 KB Output is correct
2 Correct 5 ms 972 KB Output is correct
3 Correct 13 ms 3532 KB Output is correct
4 Correct 13 ms 1036 KB Output is correct
5 Correct 20 ms 2900 KB Output is correct
6 Correct 11 ms 2380 KB Output is correct
7 Correct 3 ms 1100 KB Output is correct
8 Correct 11 ms 2380 KB Output is correct
9 Correct 39 ms 2628 KB Output is correct
10 Correct 25 ms 2288 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 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 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 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 13 ms 696 KB Output is correct
17 Correct 20 ms 1612 KB Output is correct
18 Correct 34 ms 1808 KB Output is correct
19 Correct 135 ms 1740 KB Output is correct
20 Correct 187 ms 1884 KB Output is correct
21 Correct 19 ms 1504 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 24 ms 952 KB Output is correct
24 Correct 30 ms 1740 KB Output is correct
25 Correct 6 ms 460 KB Output is correct
26 Correct 20 ms 1196 KB Output is correct
27 Correct 29 ms 1356 KB Output is correct
28 Correct 32 ms 1740 KB Output is correct
29 Correct 9 ms 836 KB Output is correct
30 Correct 1 ms 332 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 3148 KB Output is correct
2 Correct 5 ms 972 KB Output is correct
3 Correct 13 ms 3532 KB Output is correct
4 Correct 13 ms 1036 KB Output is correct
5 Correct 20 ms 2900 KB Output is correct
6 Correct 11 ms 2380 KB Output is correct
7 Correct 3 ms 1100 KB Output is correct
8 Correct 11 ms 2380 KB Output is correct
9 Correct 39 ms 2628 KB Output is correct
10 Correct 25 ms 2288 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 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 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 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 13 ms 696 KB Output is correct
27 Correct 20 ms 1612 KB Output is correct
28 Correct 34 ms 1808 KB Output is correct
29 Correct 135 ms 1740 KB Output is correct
30 Correct 187 ms 1884 KB Output is correct
31 Correct 19 ms 1504 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 24 ms 952 KB Output is correct
34 Correct 30 ms 1740 KB Output is correct
35 Correct 6 ms 460 KB Output is correct
36 Correct 20 ms 1196 KB Output is correct
37 Correct 29 ms 1356 KB Output is correct
38 Correct 32 ms 1740 KB Output is correct
39 Correct 9 ms 836 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 146 ms 4728 KB Output is correct
42 Correct 42 ms 4804 KB Output is correct
43 Correct 88 ms 4748 KB Output is correct
44 Correct 43 ms 4824 KB Output is correct
45 Correct 34 ms 4892 KB Output is correct
46 Correct 191 ms 4800 KB Output is correct
47 Correct 27 ms 4684 KB Output is correct
48 Correct 61 ms 4812 KB Output is correct
49 Correct 37 ms 4684 KB Output is correct
50 Correct 807 ms 4336 KB Output is correct
51 Correct 837 ms 6744 KB Output is correct
52 Correct 781 ms 6476 KB Output is correct
53 Correct 851 ms 6716 KB Output is correct
54 Correct 777 ms 6436 KB Output is correct
55 Correct 875 ms 6864 KB Output is correct
56 Correct 748 ms 6320 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 20 ms 3148 KB Output is correct
10 Correct 5 ms 972 KB Output is correct
11 Correct 13 ms 3532 KB Output is correct
12 Correct 13 ms 1036 KB Output is correct
13 Correct 20 ms 2900 KB Output is correct
14 Correct 11 ms 2380 KB Output is correct
15 Correct 3 ms 1100 KB Output is correct
16 Correct 11 ms 2380 KB Output is correct
17 Correct 39 ms 2628 KB Output is correct
18 Correct 25 ms 2288 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 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 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 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 13 ms 696 KB Output is correct
35 Correct 20 ms 1612 KB Output is correct
36 Correct 34 ms 1808 KB Output is correct
37 Correct 135 ms 1740 KB Output is correct
38 Correct 187 ms 1884 KB Output is correct
39 Correct 19 ms 1504 KB Output is correct
40 Correct 2 ms 332 KB Output is correct
41 Correct 24 ms 952 KB Output is correct
42 Correct 30 ms 1740 KB Output is correct
43 Correct 6 ms 460 KB Output is correct
44 Correct 20 ms 1196 KB Output is correct
45 Correct 29 ms 1356 KB Output is correct
46 Correct 32 ms 1740 KB Output is correct
47 Correct 9 ms 836 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 146 ms 4728 KB Output is correct
50 Correct 42 ms 4804 KB Output is correct
51 Correct 88 ms 4748 KB Output is correct
52 Correct 43 ms 4824 KB Output is correct
53 Correct 34 ms 4892 KB Output is correct
54 Correct 191 ms 4800 KB Output is correct
55 Correct 27 ms 4684 KB Output is correct
56 Correct 61 ms 4812 KB Output is correct
57 Correct 37 ms 4684 KB Output is correct
58 Correct 807 ms 4336 KB Output is correct
59 Correct 837 ms 6744 KB Output is correct
60 Correct 781 ms 6476 KB Output is correct
61 Correct 851 ms 6716 KB Output is correct
62 Correct 777 ms 6436 KB Output is correct
63 Correct 875 ms 6864 KB Output is correct
64 Correct 748 ms 6320 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 839 ms 6616 KB Output is correct
68 Correct 813 ms 6596 KB Output is correct
69 Correct 708 ms 6144 KB Output is correct
70 Correct 711 ms 6488 KB Output is correct
71 Correct 781 ms 6468 KB Output is correct
72 Correct 706 ms 6376 KB Output is correct
73 Correct 791 ms 6284 KB Output is correct
74 Correct 828 ms 6548 KB Output is correct
75 Correct 781 ms 6412 KB Output is correct
76 Correct 810 ms 6692 KB Output is correct
77 Correct 122 ms 7352 KB Output is correct
78 Correct 44 ms 6852 KB Output is correct
79 Correct 86 ms 6736 KB Output is correct
80 Correct 87 ms 6852 KB Output is correct
81 Correct 82 ms 6724 KB Output is correct
82 Correct 68 ms 7124 KB Output is correct
83 Correct 54 ms 6804 KB Output is correct
84 Correct 527 ms 7260 KB Output is correct
85 Correct 847 ms 6780 KB Output is correct
86 Correct 31 ms 2916 KB Output is correct
87 Incorrect 32 ms 2920 KB Output isn't correct
88 Halted 0 ms 0 KB -