답안 #518766

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
518766	2022-01-24T14:49:39 Z	spike1236	Chessboard (IZhO18_chessboard)	C++14	70 / 100	606 ms	452 KB

chessboard

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define ll long long
#define ld long double
#define all(_v) _v.begin(), _v.end()
#define sz(_v) (int)_v.size()
#define pii pair <int, int>
#define pll pair <ll, ll>
#define veci vector <int>
#define vecll vector <ll>

const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, -1, 1};
const double PI = 3.1415926535897932384626433832795;
const double eps = 1e-9;
const int MOD1 = 1e9 + 7;
const int MOD2 = 998244353;

const int MAXN = 2e5 + 10;
ll n;
ll cnt[MAXN];

ll get(ll r, ll k) {
    ll nr = (r % k == 0 ? r : r - r % k);
    ll bl = nr / k;
    ll cnt = (bl + 1) / 2 * k;
    if(bl % 2 == 0) cnt += r - nr;
    return cnt;
}

void solve() {
    int k;
    cin >> n >> k;
    vecll dv;
    dv.pb(1);
    for(ll i = 2; i * i <= n; ++i) {
        if(n % i == 0) {
            dv.pb(i);
            if(i * i != n) dv.pb(n / i);
        }
    }
    sort(all(dv));
    for(auto i : dv) {
        ll cnt1 = get(n, i);
        cnt[i] = cnt1 * i * (((n / i) + 1) / 2) + (n - cnt1) * i * (n / i - (((n / i) + 1) / 2));
    }
    for(int rect = 1; rect <= k; ++rect) {
        ll x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        for(auto i : dv) {
            ll row_cnt[2];
            row_cnt[1] = get(x2, i) - get(x1 - 1, i);
            row_cnt[0] = x2 - x1 + 1 - row_cnt[1];
            ll col_cnt[2];
            col_cnt[1] = get(y2, i) - get(y2 - 1, i);
            col_cnt[0] = y2 - y1 + 1 - col_cnt[1];
            cnt[i] -= row_cnt[1] * col_cnt[1];
            cnt[i] -= row_cnt[0] * col_cnt[0];
            cnt[i] += row_cnt[0] * col_cnt[1];
            cnt[i] += row_cnt[1] * col_cnt[0];
        }
    }
    ll ans = 4e18;
    for(auto i : dv) ans = min(ans, min(cnt[i], n * n - cnt[i]));
    cout << ans;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int CNT_TESTS = 1;
    ///cin >> CNT_TESTS;
    for(int NUMCASE = 1; NUMCASE <= CNT_TESTS; ++NUMCASE) {
        solve();
        if(NUMCASE != CNT_TESTS) cout << '\n';
    }
    return 0;
}

Subtask #1
8.0 / 8.0

#	결과	메모리	Grader output
1	Correct	204 KB	Output is correct
2	Correct	204 KB	Output is correct
3	Correct	204 KB	Output is correct
4	Correct	204 KB	Output is correct
5	Correct	204 KB	Output is correct
6	Correct	204 KB	Output is correct
7	Correct	204 KB	Output is correct
8	Correct	204 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	324 KB	Output is correct
2	Correct	5 ms	204 KB	Output is correct
3	Correct	13 ms	320 KB	Output is correct
4	Correct	13 ms	320 KB	Output is correct
5	Correct	17 ms	204 KB	Output is correct
6	Correct	11 ms	312 KB	Output is correct
7	Correct	3 ms	204 KB	Output is correct
8	Correct	12 ms	204 KB	Output is correct
9	Correct	30 ms	204 KB	Output is correct
10	Correct	17 ms	316 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	324 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	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	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	324 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	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	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	10 ms	204 KB	Output is correct
17	Correct	22 ms	204 KB	Output is correct
18	Correct	35 ms	204 KB	Output is correct
19	Correct	120 ms	304 KB	Output is correct
20	Correct	136 ms	300 KB	Output is correct
21	Correct	21 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	22 ms	204 KB	Output is correct
24	Correct	30 ms	204 KB	Output is correct
25	Correct	4 ms	204 KB	Output is correct
26	Correct	22 ms	204 KB	Output is correct
27	Correct	29 ms	324 KB	Output is correct
28	Correct	34 ms	204 KB	Output is correct
29	Correct	9 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	324 KB	Output is correct
2	Correct	5 ms	204 KB	Output is correct
3	Correct	13 ms	320 KB	Output is correct
4	Correct	13 ms	320 KB	Output is correct
5	Correct	17 ms	204 KB	Output is correct
6	Correct	11 ms	312 KB	Output is correct
7	Correct	3 ms	204 KB	Output is correct
8	Correct	12 ms	204 KB	Output is correct
9	Correct	30 ms	204 KB	Output is correct
10	Correct	17 ms	316 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	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	324 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 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	204 KB	Output is correct
22	Correct	0 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	10 ms	204 KB	Output is correct
27	Correct	22 ms	204 KB	Output is correct
28	Correct	35 ms	204 KB	Output is correct
29	Correct	120 ms	304 KB	Output is correct
30	Correct	136 ms	300 KB	Output is correct
31	Correct	21 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	22 ms	204 KB	Output is correct
34	Correct	30 ms	204 KB	Output is correct
35	Correct	4 ms	204 KB	Output is correct
36	Correct	22 ms	204 KB	Output is correct
37	Correct	29 ms	324 KB	Output is correct
38	Correct	34 ms	204 KB	Output is correct
39	Correct	9 ms	204 KB	Output is correct
40	Correct	1 ms	204 KB	Output is correct
41	Correct	108 ms	336 KB	Output is correct
42	Correct	38 ms	204 KB	Output is correct
43	Correct	65 ms	332 KB	Output is correct
44	Correct	39 ms	316 KB	Output is correct
45	Correct	31 ms	204 KB	Output is correct
46	Correct	128 ms	332 KB	Output is correct
47	Correct	28 ms	204 KB	Output is correct
48	Correct	51 ms	204 KB	Output is correct
49	Correct	34 ms	300 KB	Output is correct
50	Correct	541 ms	452 KB	Output is correct
51	Correct	580 ms	388 KB	Output is correct
52	Correct	539 ms	452 KB	Output is correct
53	Correct	587 ms	384 KB	Output is correct
54	Correct	540 ms	384 KB	Output is correct
55	Correct	606 ms	396 KB	Output is correct
56	Correct	513 ms	332 KB	Output is correct

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	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	0 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	21 ms	324 KB	Output is correct
10	Correct	5 ms	204 KB	Output is correct
11	Correct	13 ms	320 KB	Output is correct
12	Correct	13 ms	320 KB	Output is correct
13	Correct	17 ms	204 KB	Output is correct
14	Correct	11 ms	312 KB	Output is correct
15	Correct	3 ms	204 KB	Output is correct
16	Correct	12 ms	204 KB	Output is correct
17	Correct	30 ms	204 KB	Output is correct
18	Correct	17 ms	316 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	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	324 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 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	204 KB	Output is correct
30	Correct	0 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	1 ms	204 KB	Output is correct
34	Correct	10 ms	204 KB	Output is correct
35	Correct	22 ms	204 KB	Output is correct
36	Correct	35 ms	204 KB	Output is correct
37	Correct	120 ms	304 KB	Output is correct
38	Correct	136 ms	300 KB	Output is correct
39	Correct	21 ms	204 KB	Output is correct
40	Correct	1 ms	204 KB	Output is correct
41	Correct	22 ms	204 KB	Output is correct
42	Correct	30 ms	204 KB	Output is correct
43	Correct	4 ms	204 KB	Output is correct
44	Correct	22 ms	204 KB	Output is correct
45	Correct	29 ms	324 KB	Output is correct
46	Correct	34 ms	204 KB	Output is correct
47	Correct	9 ms	204 KB	Output is correct
48	Correct	1 ms	204 KB	Output is correct
49	Correct	108 ms	336 KB	Output is correct
50	Correct	38 ms	204 KB	Output is correct
51	Correct	65 ms	332 KB	Output is correct
52	Correct	39 ms	316 KB	Output is correct
53	Correct	31 ms	204 KB	Output is correct
54	Correct	128 ms	332 KB	Output is correct
55	Correct	28 ms	204 KB	Output is correct
56	Correct	51 ms	204 KB	Output is correct
57	Correct	34 ms	300 KB	Output is correct
58	Correct	541 ms	452 KB	Output is correct
59	Correct	580 ms	388 KB	Output is correct
60	Correct	539 ms	452 KB	Output is correct
61	Correct	587 ms	384 KB	Output is correct
62	Correct	540 ms	384 KB	Output is correct
63	Correct	606 ms	396 KB	Output is correct
64	Correct	513 ms	332 KB	Output is correct
65	Correct	0 ms	204 KB	Output is correct
66	Incorrect	0 ms	204 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

답안 #518766

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 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
0 / 30.0