oj.uz

Submission #684232

# Submission time Handle Problem Language Result Execution time Memory
684232 2023-01-20T18:04:00 Z mychecksedad Chessboard (IZhO18_chessboard) C++17
47 / 100
 2000 ms 4588 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define pb push_back
#define all(x) x.begin() x.end()
#define MOD (1e9+7)
const int N = 1e6;

ll n, k, ans = 1e18;
vector<array<ll, 4>> vv;

ll wh(ll x, ll y, ll d){
	x++, y++;
	if(x <= 0 || y <= 0) return 0;
	ll res = (x / d) * (y / d) / 2 * d * d;
	if(x % (2*d) >= d){
		ll y1 = y / (2*d) * 2*d;
		res += y1 / (2*d) * (x % d) * d;
		res += (x % d) * min(d, y % (2*d));
	}else{
		ll y1 = y / (2*d) * 2*d;
		res += y1 / (2*d) * (x % d) * d;
	}
	if(y % (2*d) >= d){
		ll x1 = x / (2*d) * 2*d;
		res += x1 / (2*d) * (y % d) * d;
		res += (y % d) * min(d, x % (2*d));
	}else{
		ll x1 = x / (2*d) * 2*d;
		res += x1 / (2*d) * (y % d) * d;
	}
	return res;
}
ll bl(ll x, ll y, ll d){
	x++, y++;
	if(x <= 0 || y <= 0) return 0;
	return x * y - wh(x - 1, y - 1, d);
}
void solve(){
	cin >> n >> k;
	int a = 0;
	for(int i = 0; i < k; ++i){
		int x1, x2, y1, y2; cin >> x1 >> y1 >> x2 >> y2;
		vv.pb({x1-1,y1-1,x2-1,y2-1});
	}
	for(ll i = 1; i < n; ++i){
		if(n % i == 0){
			for(int rep = 0; rep < 2; ++rep){
				ll c = 0;
				for(auto v: vv){
					ll white = wh(v[2], v[3], i) - wh(v[0] - 1, v[3], i) - wh(v[2], v[1] - 1, i) + wh(v[0] - 1, v[1] - 1, i);					
					ll black = (v[2] + 1) * (v[3] + 1) - (v[0]) * (v[3] + 1) - (v[2] + 1) * (v[1]) + (v[0] * v[1]) - white;					
					ll val = white - black;
					if(!rep) c += val;
					else c -= val;
				}
				ans = min(ans, c + (rep ? (n/i)*(n/i)/2*i*i : ((n/i)*(n/i) + 1)/2*i*i));
			}

		}
	}
	cout << ans;
}

int main(){
	solve();
	return 0;
}

Compilation message

chessboard.cpp: In function 'void solve()':
chessboard.cpp:41:6: warning: unused variable 'a' [-Wunused-variable]
   41 |  int a = 0;
      |      ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 2392 KB Output is correct
2 Correct 22 ms 1372 KB Output is correct
3 Correct 58 ms 2456 KB Output is correct
4 Correct 68 ms 2452 KB Output is correct
5 Correct 99 ms 2368 KB Output is correct
6 Correct 49 ms 2432 KB Output is correct
7 Correct 11 ms 656 KB Output is correct
8 Correct 47 ms 2368 KB Output is correct
9 Correct 137 ms 4496 KB Output is correct
10 Correct 68 ms 2368 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 45 ms 1356 KB Output is correct
17 Correct 117 ms 4408 KB Output is correct
18 Correct 179 ms 4588 KB Output is correct
19 Correct 680 ms 4456 KB Output is correct
20 Correct 762 ms 4408 KB Output is correct
21 Correct 100 ms 4500 KB Output is correct
22 Correct 2 ms 212 KB Output is correct
23 Correct 117 ms 2360 KB Output is correct
24 Correct 148 ms 4452 KB Output is correct
25 Correct 22 ms 848 KB Output is correct
26 Correct 98 ms 2444 KB Output is correct
27 Correct 145 ms 4456 KB Output is correct
28 Correct 149 ms 4500 KB Output is correct
29 Correct 36 ms 2408 KB Output is correct
30 Correct 5 ms 468 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 2392 KB Output is correct
2 Correct 22 ms 1372 KB Output is correct
3 Correct 58 ms 2456 KB Output is correct
4 Correct 68 ms 2452 KB Output is correct
5 Correct 99 ms 2368 KB Output is correct
6 Correct 49 ms 2432 KB Output is correct
7 Correct 11 ms 656 KB Output is correct
8 Correct 47 ms 2368 KB Output is correct
9 Correct 137 ms 4496 KB Output is correct
10 Correct 68 ms 2368 KB Output is correct
11 Correct 2 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 5 ms 340 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 45 ms 1356 KB Output is correct
27 Correct 117 ms 4408 KB Output is correct
28 Correct 179 ms 4588 KB Output is correct
29 Correct 680 ms 4456 KB Output is correct
30 Correct 762 ms 4408 KB Output is correct
31 Correct 100 ms 4500 KB Output is correct
32 Correct 2 ms 212 KB Output is correct
33 Correct 117 ms 2360 KB Output is correct
34 Correct 148 ms 4452 KB Output is correct
35 Correct 22 ms 848 KB Output is correct
36 Correct 98 ms 2444 KB Output is correct
37 Correct 145 ms 4456 KB Output is correct
38 Correct 149 ms 4500 KB Output is correct
39 Correct 36 ms 2408 KB Output is correct
40 Correct 5 ms 468 KB Output is correct
41 Correct 656 ms 4524 KB Output is correct
42 Correct 190 ms 4408 KB Output is correct
43 Correct 357 ms 4408 KB Output is correct
44 Correct 176 ms 4436 KB Output is correct
45 Correct 139 ms 4524 KB Output is correct
46 Correct 694 ms 4412 KB Output is correct
47 Correct 123 ms 4500 KB Output is correct
48 Correct 287 ms 4508 KB Output is correct
49 Correct 164 ms 4464 KB Output is correct
50 Execution timed out 2055 ms 4484 KB Time limit exceeded
51 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 88 ms 2392 KB Output is correct
10 Correct 22 ms 1372 KB Output is correct
11 Correct 58 ms 2456 KB Output is correct
12 Correct 68 ms 2452 KB Output is correct
13 Correct 99 ms 2368 KB Output is correct
14 Correct 49 ms 2432 KB Output is correct
15 Correct 11 ms 656 KB Output is correct
16 Correct 47 ms 2368 KB Output is correct
17 Correct 137 ms 4496 KB Output is correct
18 Correct 68 ms 2368 KB Output is correct
19 Correct 2 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 2 ms 340 KB Output is correct
32 Correct 5 ms 340 KB Output is correct
33 Correct 3 ms 340 KB Output is correct
34 Correct 45 ms 1356 KB Output is correct
35 Correct 117 ms 4408 KB Output is correct
36 Correct 179 ms 4588 KB Output is correct
37 Correct 680 ms 4456 KB Output is correct
38 Correct 762 ms 4408 KB Output is correct
39 Correct 100 ms 4500 KB Output is correct
40 Correct 2 ms 212 KB Output is correct
41 Correct 117 ms 2360 KB Output is correct
42 Correct 148 ms 4452 KB Output is correct
43 Correct 22 ms 848 KB Output is correct
44 Correct 98 ms 2444 KB Output is correct
45 Correct 145 ms 4456 KB Output is correct
46 Correct 149 ms 4500 KB Output is correct
47 Correct 36 ms 2408 KB Output is correct
48 Correct 5 ms 468 KB Output is correct
49 Correct 656 ms 4524 KB Output is correct
50 Correct 190 ms 4408 KB Output is correct
51 Correct 357 ms 4408 KB Output is correct
52 Correct 176 ms 4436 KB Output is correct
53 Correct 139 ms 4524 KB Output is correct
54 Correct 694 ms 4412 KB Output is correct
55 Correct 123 ms 4500 KB Output is correct
56 Correct 287 ms 4508 KB Output is correct
57 Correct 164 ms 4464 KB Output is correct
58 Execution timed out 2055 ms 4484 KB Time limit exceeded
59 Halted 0 ms 0 KB -