oj.uz

답안 #784654

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
784654 2023-07-16T11:35:59 Z ToniB Chessboard (IZhO18_chessboard) C++17
47 / 100
 2000 ms 6952 KB 
#include <bits/stdc++.h>
#define X first
#define Y second
using namespace std;
const int MAXN = 1e5 + 5;
const int OFF = 1 << 18;
typedef long long ll;

int n, k, tour[OFF];
vector<pair<int, int> > v[MAXN];
bool prop[OFF];

void propagate(int& x, int& l, int& r){
	prop[x] = 0;
	tour[x] = r - l + 1 - tour[x];
	if(l != r){
		prop[x * 2 + 1] ^= 1;
		prop[x * 2 + 2] ^= 1;
	}
}

void upd(int x, int l, int r, int ql, int qr){
	if(prop[x]) propagate(x, l, r);
	if(ql <= l && r <= qr){
		prop[x] = 1;
		propagate(x, l, r);
		return ;
	}
	if(ql > r || l > qr) return ;
	int mid = (l + r) >> 1;
	upd(x * 2 + 1, l, mid, ql, qr);
	upd(x * 2 + 2, mid + 1, r, ql, qr);
	tour[x] = tour[x * 2 + 1] + tour[x * 2 + 2];
}

ll solve(int& k){
	ll ret = 5e9;
	for(int b = 0; b < 2; ++b){
		ll cur = 0;
		for(int i = b * k; i < n; i += 2 * k){
			upd(0, 0, n - 1, i, i + k - 1);
		}
		for(int i = 0; i < n; ++i){
			for(pair<int, int>& p : v[i]){
				upd(0, 0, n - 1, p.X, p.Y);
			}
			if(i % k == 0) upd(0, 0, n - 1, 0, n - 1);
			cur += tour[0];
		}
		ret = min(ret, cur);

		for(pair<int, int>& p : v[n]){
			upd(0, 0, n - 1, p.X, p.Y);
		}
		bool s = b ^ bool(n / k);
		for(int i = s * k; i < n; i += 2 * k){
			upd(0, 0, n - 1, i, i + k - 1);
		}
		
	}
	return ret;
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n >> k;
	for(int i = 0; i < k; ++i){
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		--x1, --y1, --x2, --y2;
		v[x1].push_back({y1, y2});
		v[x2 + 1].push_back({y1, y2});
	}
	ll ans = 5e9;
	for(int i = 1; i < n; ++i){
		if(n % i == 0){
			ans = min(ans, solve(i));
		}
	}
	cout << ans;
	return 0;
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 119 ms 5512 KB Output is correct
2 Correct 30 ms 3412 KB Output is correct
3 Correct 110 ms 5716 KB Output is correct
4 Correct 52 ms 3924 KB Output is correct
5 Correct 119 ms 5228 KB Output is correct
6 Correct 74 ms 4616 KB Output is correct
7 Correct 19 ms 3320 KB Output is correct
8 Correct 71 ms 4544 KB Output is correct
9 Correct 147 ms 5636 KB Output is correct
10 Correct 96 ms 4988 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 4 ms 2644 KB Output is correct
5 Correct 3 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 3 ms 2644 KB Output is correct
8 Correct 3 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 1 ms 2660 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 4 ms 2644 KB Output is correct
14 Correct 3 ms 2644 KB Output is correct
15 Correct 3 ms 2644 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 4 ms 2644 KB Output is correct
5 Correct 3 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 3 ms 2644 KB Output is correct
8 Correct 3 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 1 ms 2660 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 4 ms 2644 KB Output is correct
14 Correct 3 ms 2644 KB Output is correct
15 Correct 3 ms 2644 KB Output is correct
16 Correct 60 ms 3380 KB Output is correct
17 Correct 84 ms 4900 KB Output is correct
18 Correct 210 ms 4896 KB Output is correct
19 Correct 1413 ms 4860 KB Output is correct
20 Correct 1549 ms 4836 KB Output is correct
21 Correct 78 ms 4812 KB Output is correct
22 Correct 7 ms 2644 KB Output is correct
23 Correct 188 ms 3788 KB Output is correct
24 Correct 187 ms 4928 KB Output is correct
25 Correct 42 ms 2916 KB Output is correct
26 Correct 121 ms 4048 KB Output is correct
27 Correct 224 ms 4632 KB Output is correct
28 Correct 200 ms 4788 KB Output is correct
29 Correct 33 ms 3540 KB Output is correct
30 Correct 8 ms 2708 KB Output is correct

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 119 ms 5512 KB Output is correct
2 Correct 30 ms 3412 KB Output is correct
3 Correct 110 ms 5716 KB Output is correct
4 Correct 52 ms 3924 KB Output is correct
5 Correct 119 ms 5228 KB Output is correct
6 Correct 74 ms 4616 KB Output is correct
7 Correct 19 ms 3320 KB Output is correct
8 Correct 71 ms 4544 KB Output is correct
9 Correct 147 ms 5636 KB Output is correct
10 Correct 96 ms 4988 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 4 ms 2644 KB Output is correct
15 Correct 3 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 3 ms 2644 KB Output is correct
18 Correct 3 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 1 ms 2660 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 4 ms 2644 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 60 ms 3380 KB Output is correct
27 Correct 84 ms 4900 KB Output is correct
28 Correct 210 ms 4896 KB Output is correct
29 Correct 1413 ms 4860 KB Output is correct
30 Correct 1549 ms 4836 KB Output is correct
31 Correct 78 ms 4812 KB Output is correct
32 Correct 7 ms 2644 KB Output is correct
33 Correct 188 ms 3788 KB Output is correct
34 Correct 187 ms 4928 KB Output is correct
35 Correct 42 ms 2916 KB Output is correct
36 Correct 121 ms 4048 KB Output is correct
37 Correct 224 ms 4632 KB Output is correct
38 Correct 200 ms 4788 KB Output is correct
39 Correct 33 ms 3540 KB Output is correct
40 Correct 8 ms 2708 KB Output is correct
41 Execution timed out 2075 ms 6952 KB Time limit exceeded
42 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 119 ms 5512 KB Output is correct
10 Correct 30 ms 3412 KB Output is correct
11 Correct 110 ms 5716 KB Output is correct
12 Correct 52 ms 3924 KB Output is correct
13 Correct 119 ms 5228 KB Output is correct
14 Correct 74 ms 4616 KB Output is correct
15 Correct 19 ms 3320 KB Output is correct
16 Correct 71 ms 4544 KB Output is correct
17 Correct 147 ms 5636 KB Output is correct
18 Correct 96 ms 4988 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 4 ms 2644 KB Output is correct
23 Correct 3 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 3 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 1 ms 2660 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 4 ms 2644 KB Output is correct
32 Correct 3 ms 2644 KB Output is correct
33 Correct 3 ms 2644 KB Output is correct
34 Correct 60 ms 3380 KB Output is correct
35 Correct 84 ms 4900 KB Output is correct
36 Correct 210 ms 4896 KB Output is correct
37 Correct 1413 ms 4860 KB Output is correct
38 Correct 1549 ms 4836 KB Output is correct
39 Correct 78 ms 4812 KB Output is correct
40 Correct 7 ms 2644 KB Output is correct
41 Correct 188 ms 3788 KB Output is correct
42 Correct 187 ms 4928 KB Output is correct
43 Correct 42 ms 2916 KB Output is correct
44 Correct 121 ms 4048 KB Output is correct
45 Correct 224 ms 4632 KB Output is correct
46 Correct 200 ms 4788 KB Output is correct
47 Correct 33 ms 3540 KB Output is correct
48 Correct 8 ms 2708 KB Output is correct
49 Execution timed out 2075 ms 6952 KB Time limit exceeded
50 Halted 0 ms 0 KB -