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Submission #1114631

# Submission time Handle Problem Language Result Execution time Memory
1114631 2024-11-19T09:31:02 Z adiyer Chessboard (IZhO18_chessboard) C++17
70 / 100
 151 ms 5960 KB 
#include <bits/stdc++.h>

#define adiyer(); ios_base::sync_with_stdio(0); cin.tie(0);
#define all(x) (x.begin(), x.end())
#define pb push_back

#define int long long

typedef long long ll;

using namespace std;

const int N = 1e5 + 11;
const int mod = 1e9 + 7;
const ll inf = 1e18 + 11;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

ll n, m;
ll ax[N], bx[N], ay[N], by[N];

vector < ll > d;

bool check(ll x, ll y, ll sz){
	ll a = x % (sz * 2);
	ll b = y % (sz * 2);
	a = bool(1 <= a && a <= sz);
	b = bool(1 <= b && b <= sz);
	// cout << x << ' ' << y << ' ' << a << ' ' << b << ' ' << sz << ' ' << ((a + b) & 1) << '\n';
	return ((a + b) & 1);
}

void solve(){
	cin >> n >> m;
	for(int i = 1; i <= m; i++) cin >> ax[i] >> ay[i] >> bx[i] >> by[i];
	for(int i = 1; i < n; i++){
		if(n % i == 0){
			d.pb(i);
		}
	}
	ll mn = inf;
	for(int sz : d){
		ll cur1 = ((n / sz) * (n / sz) / 2) * (sz * sz);
		ll cur2 = ((n / sz) * (n / sz) - ((n / sz) * (n / sz) / 2)) * (sz * sz);
		cur1 -= m, cur2 -= m;
		for(int i = 1; i <= m; i++){
			if(!check(ax[i], ay[i], sz)) cur1 += 2;
			else cur2 += 2;
		}
		// cout << sz << ' ' << cur1 << ' ' << cur2 << '\n';
		mn = min(mn, min(cur1, cur2));
	}
	cout << mn;
}

const bool Cases = 0;

signed main(){
	adiyer();
	int CS = 1;
	if(Cases) cin >> CS;
	while(CS--) solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 336 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 4688 KB Output is correct
2 Correct 6 ms 2896 KB Output is correct
3 Correct 11 ms 3960 KB Output is correct
4 Correct 13 ms 3932 KB Output is correct
5 Correct 15 ms 4432 KB Output is correct
6 Correct 10 ms 3664 KB Output is correct
7 Correct 3 ms 2640 KB Output is correct
8 Correct 10 ms 3752 KB Output is correct
9 Correct 23 ms 5448 KB Output is correct
10 Correct 13 ms 4176 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2524 KB Output is correct
10 Correct 1 ms 2528 KB Output is correct
11 Correct 2 ms 2548 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2552 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 2 ms 2652 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2524 KB Output is correct
10 Correct 1 ms 2528 KB Output is correct
11 Correct 2 ms 2548 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2552 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 2 ms 2652 KB Output is correct
16 Correct 7 ms 3316 KB Output is correct
17 Correct 16 ms 4688 KB Output is correct
18 Correct 20 ms 4944 KB Output is correct
19 Correct 42 ms 4688 KB Output is correct
20 Correct 46 ms 4988 KB Output is correct
21 Correct 16 ms 4432 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 11 ms 3664 KB Output is correct
24 Correct 18 ms 4760 KB Output is correct
25 Correct 3 ms 2640 KB Output is correct
26 Correct 12 ms 3920 KB Output is correct
27 Correct 20 ms 4176 KB Output is correct
28 Correct 20 ms 4944 KB Output is correct
29 Correct 7 ms 3408 KB Output is correct
30 Correct 2 ms 2384 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 4688 KB Output is correct
2 Correct 6 ms 2896 KB Output is correct
3 Correct 11 ms 3960 KB Output is correct
4 Correct 13 ms 3932 KB Output is correct
5 Correct 15 ms 4432 KB Output is correct
6 Correct 10 ms 3664 KB Output is correct
7 Correct 3 ms 2640 KB Output is correct
8 Correct 10 ms 3752 KB Output is correct
9 Correct 23 ms 5448 KB Output is correct
10 Correct 13 ms 4176 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2556 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2388 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2524 KB Output is correct
20 Correct 1 ms 2528 KB Output is correct
21 Correct 2 ms 2548 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2552 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 7 ms 3316 KB Output is correct
27 Correct 16 ms 4688 KB Output is correct
28 Correct 20 ms 4944 KB Output is correct
29 Correct 42 ms 4688 KB Output is correct
30 Correct 46 ms 4988 KB Output is correct
31 Correct 16 ms 4432 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 11 ms 3664 KB Output is correct
34 Correct 18 ms 4760 KB Output is correct
35 Correct 3 ms 2640 KB Output is correct
36 Correct 12 ms 3920 KB Output is correct
37 Correct 20 ms 4176 KB Output is correct
38 Correct 20 ms 4944 KB Output is correct
39 Correct 7 ms 3408 KB Output is correct
40 Correct 2 ms 2384 KB Output is correct
41 Correct 37 ms 5200 KB Output is correct
42 Correct 24 ms 5872 KB Output is correct
43 Correct 31 ms 5200 KB Output is correct
44 Correct 26 ms 5456 KB Output is correct
45 Correct 25 ms 5728 KB Output is correct
46 Correct 42 ms 5588 KB Output is correct
47 Correct 22 ms 5368 KB Output is correct
48 Correct 25 ms 5456 KB Output is correct
49 Correct 21 ms 5200 KB Output is correct
50 Correct 132 ms 5628 KB Output is correct
51 Correct 147 ms 5716 KB Output is correct
52 Correct 133 ms 5456 KB Output is correct
53 Correct 143 ms 5724 KB Output is correct
54 Correct 134 ms 5456 KB Output is correct
55 Correct 151 ms 5960 KB Output is correct
56 Correct 134 ms 5416 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 18 ms 4688 KB Output is correct
10 Correct 6 ms 2896 KB Output is correct
11 Correct 11 ms 3960 KB Output is correct
12 Correct 13 ms 3932 KB Output is correct
13 Correct 15 ms 4432 KB Output is correct
14 Correct 10 ms 3664 KB Output is correct
15 Correct 3 ms 2640 KB Output is correct
16 Correct 10 ms 3752 KB Output is correct
17 Correct 23 ms 5448 KB Output is correct
18 Correct 13 ms 4176 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 1 ms 2384 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2556 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 1 ms 2388 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 1 ms 2524 KB Output is correct
28 Correct 1 ms 2528 KB Output is correct
29 Correct 2 ms 2548 KB Output is correct
30 Correct 1 ms 2384 KB Output is correct
31 Correct 1 ms 2552 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 2 ms 2652 KB Output is correct
34 Correct 7 ms 3316 KB Output is correct
35 Correct 16 ms 4688 KB Output is correct
36 Correct 20 ms 4944 KB Output is correct
37 Correct 42 ms 4688 KB Output is correct
38 Correct 46 ms 4988 KB Output is correct
39 Correct 16 ms 4432 KB Output is correct
40 Correct 1 ms 2384 KB Output is correct
41 Correct 11 ms 3664 KB Output is correct
42 Correct 18 ms 4760 KB Output is correct
43 Correct 3 ms 2640 KB Output is correct
44 Correct 12 ms 3920 KB Output is correct
45 Correct 20 ms 4176 KB Output is correct
46 Correct 20 ms 4944 KB Output is correct
47 Correct 7 ms 3408 KB Output is correct
48 Correct 2 ms 2384 KB Output is correct
49 Correct 37 ms 5200 KB Output is correct
50 Correct 24 ms 5872 KB Output is correct
51 Correct 31 ms 5200 KB Output is correct
52 Correct 26 ms 5456 KB Output is correct
53 Correct 25 ms 5728 KB Output is correct
54 Correct 42 ms 5588 KB Output is correct
55 Correct 22 ms 5368 KB Output is correct
56 Correct 25 ms 5456 KB Output is correct
57 Correct 21 ms 5200 KB Output is correct
58 Correct 132 ms 5628 KB Output is correct
59 Correct 147 ms 5716 KB Output is correct
60 Correct 133 ms 5456 KB Output is correct
61 Correct 143 ms 5724 KB Output is correct
62 Correct 134 ms 5456 KB Output is correct
63 Correct 151 ms 5960 KB Output is correct
64 Correct 134 ms 5416 KB Output is correct
65 Correct 1 ms 2384 KB Output is correct
66 Incorrect 1 ms 2384 KB Output isn't correct
67 Halted 0 ms 0 KB -