oj.uz

Submission #90547

# Submission time Handle Problem Language Result Execution time Memory
90547 2018-12-22T11:11:24 Z HardNut Chessboard (IZhO18_chessboard) C++17
100 / 100
 1071 ms 39056 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e5 + 5;
const long long INF = 1e18 + 5;
const int MAXN = 1e6;
const int base = 317;

typedef long long ll;

const ll bs = 1e5 + 1;
const ll mod = 998244353;

#define int ll

ll ans = INF, n, k, xx[N], yy[N], xx1[N], yy1[N];

int fnd(int cor, int x) {
    if (cor <= 0)
        return 0;
    int res = (cor / x) / 2 * x;
    if ((cor / x) % 2)
    res += cor % x + 1;
    return res;
}

ll calc(ll x) {
    ll res1 = 0, res2 = 0;
    for (int i = 1; i <= k; i++) {
        int b1 = fnd(xx1[i], x) - fnd(xx[i] - 1, x),
        w1 = (xx1[i] - xx[i] + 1) - b1,
        b2 = fnd(yy1[i], x) - fnd(yy[i] - 1, x),
        w2 = (yy1[i] - yy[i] + 1) - b2;
        int x1 = xx[i] / x, y1 = yy[i] / x;
        if (x1 % 2) {
            swap(b2, w2);
        }
        if (y1 % 2) {
            swap(b1, w1);
        }
        if (x1 % 2 == y1 % 2) {
            res1 += b1 * b2 + w1 * w2;
            res2 += (b1 * w2 + w1 * b2);
        } else {
            res1 += b1 * w2 + w1 * b2;
            res2 += b1 * b2 + w1 * w2;
        }
    }
    ll c1 = (n / x) * (n / x) / 2 * x * x;
    ll c2 = n * n - c1;
    return min(c1 - res2 + res1, c2 - res1 + res2);
}

main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> k;
    for (int i = 1; i <= k; i++) {
        cin >> xx[i] >> yy[i] >> xx1[i] >> yy1[i];
        xx[i]--;
        yy[i]--;
        xx1[i]--;
        yy1[i]--;
    }
    for (int i = 1; i <= sqrt(n); i++) {
        if (n % i == 0) {
            ans = min(ans, calc(i));
            if (i != 1)
                ans = min(ans, calc(n / i));
        }
    }
    cout << ans;
    return 0;
}
/*

*/

Compilation message

chessboard.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 556 KB Output is correct
4 Correct 2 ms 556 KB Output is correct
5 Correct 2 ms 556 KB Output is correct
6 Correct 3 ms 556 KB Output is correct
7 Correct 2 ms 556 KB Output is correct
8 Correct 2 ms 556 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 3900 KB Output is correct
2 Correct 9 ms 3900 KB Output is correct
3 Correct 19 ms 4556 KB Output is correct
4 Correct 20 ms 5624 KB Output is correct
5 Correct 26 ms 7132 KB Output is correct
6 Correct 16 ms 7132 KB Output is correct
7 Correct 5 ms 7132 KB Output is correct
8 Correct 17 ms 7132 KB Output is correct
9 Correct 40 ms 8660 KB Output is correct
10 Correct 26 ms 8660 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8660 KB Output is correct
2 Correct 2 ms 8660 KB Output is correct
3 Correct 3 ms 8660 KB Output is correct
4 Correct 3 ms 8660 KB Output is correct
5 Correct 2 ms 8660 KB Output is correct
6 Correct 2 ms 8660 KB Output is correct
7 Correct 2 ms 8660 KB Output is correct
8 Correct 2 ms 8660 KB Output is correct
9 Correct 2 ms 8660 KB Output is correct
10 Correct 2 ms 8660 KB Output is correct
11 Correct 2 ms 8660 KB Output is correct
12 Correct 2 ms 8660 KB Output is correct
13 Correct 3 ms 8660 KB Output is correct
14 Correct 2 ms 8660 KB Output is correct
15 Correct 2 ms 8660 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8660 KB Output is correct
2 Correct 2 ms 8660 KB Output is correct
3 Correct 3 ms 8660 KB Output is correct
4 Correct 3 ms 8660 KB Output is correct
5 Correct 2 ms 8660 KB Output is correct
6 Correct 2 ms 8660 KB Output is correct
7 Correct 2 ms 8660 KB Output is correct
8 Correct 2 ms 8660 KB Output is correct
9 Correct 2 ms 8660 KB Output is correct
10 Correct 2 ms 8660 KB Output is correct
11 Correct 2 ms 8660 KB Output is correct
12 Correct 2 ms 8660 KB Output is correct
13 Correct 3 ms 8660 KB Output is correct
14 Correct 2 ms 8660 KB Output is correct
15 Correct 2 ms 8660 KB Output is correct
16 Correct 16 ms 8660 KB Output is correct
17 Correct 32 ms 9532 KB Output is correct
18 Correct 53 ms 11236 KB Output is correct
19 Correct 217 ms 12460 KB Output is correct
20 Correct 248 ms 14224 KB Output is correct
21 Correct 37 ms 15080 KB Output is correct
22 Correct 2 ms 15080 KB Output is correct
23 Correct 37 ms 15080 KB Output is correct
24 Correct 50 ms 17572 KB Output is correct
25 Correct 10 ms 17572 KB Output is correct
26 Correct 34 ms 17572 KB Output is correct
27 Correct 51 ms 18908 KB Output is correct
28 Correct 54 ms 21184 KB Output is correct
29 Correct 15 ms 21184 KB Output is correct
30 Correct 3 ms 21184 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 3900 KB Output is correct
2 Correct 9 ms 3900 KB Output is correct
3 Correct 19 ms 4556 KB Output is correct
4 Correct 20 ms 5624 KB Output is correct
5 Correct 26 ms 7132 KB Output is correct
6 Correct 16 ms 7132 KB Output is correct
7 Correct 5 ms 7132 KB Output is correct
8 Correct 17 ms 7132 KB Output is correct
9 Correct 40 ms 8660 KB Output is correct
10 Correct 26 ms 8660 KB Output is correct
11 Correct 2 ms 8660 KB Output is correct
12 Correct 2 ms 8660 KB Output is correct
13 Correct 3 ms 8660 KB Output is correct
14 Correct 3 ms 8660 KB Output is correct
15 Correct 2 ms 8660 KB Output is correct
16 Correct 2 ms 8660 KB Output is correct
17 Correct 2 ms 8660 KB Output is correct
18 Correct 2 ms 8660 KB Output is correct
19 Correct 2 ms 8660 KB Output is correct
20 Correct 2 ms 8660 KB Output is correct
21 Correct 2 ms 8660 KB Output is correct
22 Correct 2 ms 8660 KB Output is correct
23 Correct 3 ms 8660 KB Output is correct
24 Correct 2 ms 8660 KB Output is correct
25 Correct 2 ms 8660 KB Output is correct
26 Correct 16 ms 8660 KB Output is correct
27 Correct 32 ms 9532 KB Output is correct
28 Correct 53 ms 11236 KB Output is correct
29 Correct 217 ms 12460 KB Output is correct
30 Correct 248 ms 14224 KB Output is correct
31 Correct 37 ms 15080 KB Output is correct
32 Correct 2 ms 15080 KB Output is correct
33 Correct 37 ms 15080 KB Output is correct
34 Correct 50 ms 17572 KB Output is correct
35 Correct 10 ms 17572 KB Output is correct
36 Correct 34 ms 17572 KB Output is correct
37 Correct 51 ms 18908 KB Output is correct
38 Correct 54 ms 21184 KB Output is correct
39 Correct 15 ms 21184 KB Output is correct
40 Correct 3 ms 21184 KB Output is correct
41 Correct 183 ms 21184 KB Output is correct
42 Correct 56 ms 21184 KB Output is correct
43 Correct 106 ms 21184 KB Output is correct
44 Correct 57 ms 23012 KB Output is correct
45 Correct 44 ms 24148 KB Output is correct
46 Correct 206 ms 24148 KB Output is correct
47 Correct 39 ms 24148 KB Output is correct
48 Correct 81 ms 24148 KB Output is correct
49 Correct 50 ms 24148 KB Output is correct
50 Correct 976 ms 24148 KB Output is correct
51 Correct 1051 ms 24148 KB Output is correct
52 Correct 970 ms 24148 KB Output is correct
53 Correct 1042 ms 24148 KB Output is correct
54 Correct 976 ms 24148 KB Output is correct
55 Correct 1071 ms 24296 KB Output is correct
56 Correct 915 ms 24296 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 556 KB Output is correct
4 Correct 2 ms 556 KB Output is correct
5 Correct 2 ms 556 KB Output is correct
6 Correct 3 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 3900 KB Output is correct
10 Correct 9 ms 3900 KB Output is correct
11 Correct 19 ms 4556 KB Output is correct
12 Correct 20 ms 5624 KB Output is correct
13 Correct 26 ms 7132 KB Output is correct
14 Correct 16 ms 7132 KB Output is correct
15 Correct 5 ms 7132 KB Output is correct
16 Correct 17 ms 7132 KB Output is correct
17 Correct 40 ms 8660 KB Output is correct
18 Correct 26 ms 8660 KB Output is correct
19 Correct 2 ms 8660 KB Output is correct
20 Correct 2 ms 8660 KB Output is correct
21 Correct 3 ms 8660 KB Output is correct
22 Correct 3 ms 8660 KB Output is correct
23 Correct 2 ms 8660 KB Output is correct
24 Correct 2 ms 8660 KB Output is correct
25 Correct 2 ms 8660 KB Output is correct
26 Correct 2 ms 8660 KB Output is correct
27 Correct 2 ms 8660 KB Output is correct
28 Correct 2 ms 8660 KB Output is correct
29 Correct 2 ms 8660 KB Output is correct
30 Correct 2 ms 8660 KB Output is correct
31 Correct 3 ms 8660 KB Output is correct
32 Correct 2 ms 8660 KB Output is correct
33 Correct 2 ms 8660 KB Output is correct
34 Correct 16 ms 8660 KB Output is correct
35 Correct 32 ms 9532 KB Output is correct
36 Correct 53 ms 11236 KB Output is correct
37 Correct 217 ms 12460 KB Output is correct
38 Correct 248 ms 14224 KB Output is correct
39 Correct 37 ms 15080 KB Output is correct
40 Correct 2 ms 15080 KB Output is correct
41 Correct 37 ms 15080 KB Output is correct
42 Correct 50 ms 17572 KB Output is correct
43 Correct 10 ms 17572 KB Output is correct
44 Correct 34 ms 17572 KB Output is correct
45 Correct 51 ms 18908 KB Output is correct
46 Correct 54 ms 21184 KB Output is correct
47 Correct 15 ms 21184 KB Output is correct
48 Correct 3 ms 21184 KB Output is correct
49 Correct 183 ms 21184 KB Output is correct
50 Correct 56 ms 21184 KB Output is correct
51 Correct 106 ms 21184 KB Output is correct
52 Correct 57 ms 23012 KB Output is correct
53 Correct 44 ms 24148 KB Output is correct
54 Correct 206 ms 24148 KB Output is correct
55 Correct 39 ms 24148 KB Output is correct
56 Correct 81 ms 24148 KB Output is correct
57 Correct 50 ms 24148 KB Output is correct
58 Correct 976 ms 24148 KB Output is correct
59 Correct 1051 ms 24148 KB Output is correct
60 Correct 970 ms 24148 KB Output is correct
61 Correct 1042 ms 24148 KB Output is correct
62 Correct 976 ms 24148 KB Output is correct
63 Correct 1071 ms 24296 KB Output is correct
64 Correct 915 ms 24296 KB Output is correct
65 Correct 2 ms 24296 KB Output is correct
66 Correct 2 ms 24296 KB Output is correct
67 Correct 1020 ms 26344 KB Output is correct
68 Correct 1008 ms 28576 KB Output is correct
69 Correct 855 ms 30124 KB Output is correct
70 Correct 977 ms 32628 KB Output is correct
71 Correct 962 ms 34676 KB Output is correct
72 Correct 919 ms 36680 KB Output is correct
73 Correct 904 ms 38528 KB Output is correct
74 Correct 990 ms 38856 KB Output is correct
75 Correct 934 ms 38856 KB Output is correct
76 Correct 997 ms 38856 KB Output is correct
77 Correct 151 ms 39004 KB Output is correct
78 Correct 54 ms 39004 KB Output is correct
79 Correct 106 ms 39004 KB Output is correct
80 Correct 160 ms 39004 KB Output is correct
81 Correct 99 ms 39004 KB Output is correct
82 Correct 91 ms 39004 KB Output is correct
83 Correct 63 ms 39004 KB Output is correct
84 Correct 589 ms 39004 KB Output is correct
85 Correct 1056 ms 39056 KB Output is correct
86 Correct 3 ms 39056 KB Output is correct
87 Correct 2 ms 39056 KB Output is correct
88 Correct 1049 ms 39056 KB Output is correct
89 Correct 198 ms 39056 KB Output is correct
90 Correct 2 ms 39056 KB Output is correct