답안 #90547 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
90547	2018-12-22T11:11:24 Z	HardNut	Chessboard (IZhO18_chessboard)	C++17	100 / 100	1071 ms	39056 KB

chessboard

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #90547

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 8.0 / 8.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 23.0 / 23.0

Subtask #6 30.0 / 30.0

Subtask #1
8.0 / 8.0

Subtask #2
8.0 / 8.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
23.0 / 23.0

Subtask #6
30.0 / 30.0