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Submission #495285

# Submission time Handle Problem Language Result Execution time Memory
495285 2021-12-18T08:39:03 Z ergagan Chessboard (IZhO18_chessboard) C++17
70 / 100
 364 ms 848 KB 
//я так много думал, что опять попал
#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define f first
#define s second
#define left(v) v + v
#define right(v) v + v + 1
#define ub upper_bound
#define lb lower_bound

using namespace std;
typedef long long ll;

//17 SEVENTEEN
const long double Pi = acos(-1.0);
const ll dx[] = {0,0,1,-1};
const ll dy[] = {1,-1,0,0};
const ll N = (ll) 1e6 + 17;
const ll M = (ll) 5e3 + 69;
const ll inf = (ll) 1e18 + 3;
const ll mod = (ll) 1e9 + 7;
ll sq(ll x) { return x * x; }

ll zxc = 1;

vector<ll> d;

map<pair<ll, ll>, ll> cnt;

void solve() {
    ll n, k;
    cin >> n >> k;
    for(ll i = 2; i * i <= n; i++) {
        if(!(n % i)) {
            d.pb(i);
            if(n / i != i) d.pb(n / i);
        }
    }
    d.pb(1);
    sort(all(d));

//    for(ll x : d) cout << x << "\n";

    while(k--) {
        ll x, y;
        cin >> x >> y >> x >> y;
        for(ll val : d)
            cnt[{val, ((x - 1) / val + (y - 1) / val + 2) % 2}]++;
    }
    ll ans = inf;
    for(ll val : d) {
        ll m = n / val, x;

        if(m % 2) x = sq((m + 1) / 2) + sq(m / 2);
        else x = sq(m) / 2;
        ans = min(min(x * sq(val) - cnt[{val, 0}] + cnt[{val, 1}], (sq(m) - x) * sq(val) - cnt[{val, 1}] + cnt[{val, 0}]), ans);
    }
    cout << ans;
}

int main(/*Уверенно*/) {
ios_base::sync_with_stdio(0);
    cin.tie(0);
/*
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
*/
//    cin >> zxc;
    while(zxc--) {
        solve();
    }
  	return 0;
}
// さよならさ いかなくちゃ

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory 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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 204 KB Output is correct
2 Correct 5 ms 204 KB Output is correct
3 Correct 12 ms 312 KB Output is correct
4 Correct 13 ms 332 KB Output is correct
5 Correct 18 ms 316 KB Output is correct
6 Correct 11 ms 312 KB Output is correct
7 Correct 2 ms 320 KB Output is correct
8 Correct 10 ms 312 KB Output is correct
9 Correct 26 ms 204 KB Output is correct
10 Correct 14 ms 308 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 216 KB Output is correct
3 Correct 0 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 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 304 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 320 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 216 KB Output is correct
3 Correct 0 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 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 304 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 8 ms 520 KB Output is correct
17 Correct 23 ms 724 KB Output is correct
18 Correct 35 ms 708 KB Output is correct
19 Correct 68 ms 708 KB Output is correct
20 Correct 77 ms 680 KB Output is correct
21 Correct 23 ms 704 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 16 ms 460 KB Output is correct
24 Correct 28 ms 644 KB Output is correct
25 Correct 6 ms 324 KB Output is correct
26 Correct 19 ms 596 KB Output is correct
27 Correct 22 ms 688 KB Output is correct
28 Correct 28 ms 700 KB Output is correct
29 Correct 10 ms 460 KB Output is correct
30 Correct 2 ms 324 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 204 KB Output is correct
2 Correct 5 ms 204 KB Output is correct
3 Correct 12 ms 312 KB Output is correct
4 Correct 13 ms 332 KB Output is correct
5 Correct 18 ms 316 KB Output is correct
6 Correct 11 ms 312 KB Output is correct
7 Correct 2 ms 320 KB Output is correct
8 Correct 10 ms 312 KB Output is correct
9 Correct 26 ms 204 KB Output is correct
10 Correct 14 ms 308 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 216 KB Output is correct
13 Correct 0 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 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 320 KB Output is correct
20 Correct 0 ms 304 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 320 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 8 ms 520 KB Output is correct
27 Correct 23 ms 724 KB Output is correct
28 Correct 35 ms 708 KB Output is correct
29 Correct 68 ms 708 KB Output is correct
30 Correct 77 ms 680 KB Output is correct
31 Correct 23 ms 704 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 16 ms 460 KB Output is correct
34 Correct 28 ms 644 KB Output is correct
35 Correct 6 ms 324 KB Output is correct
36 Correct 19 ms 596 KB Output is correct
37 Correct 22 ms 688 KB Output is correct
38 Correct 28 ms 700 KB Output is correct
39 Correct 10 ms 460 KB Output is correct
40 Correct 2 ms 324 KB Output is correct
41 Correct 66 ms 848 KB Output is correct
42 Correct 32 ms 768 KB Output is correct
43 Correct 48 ms 664 KB Output is correct
44 Correct 34 ms 836 KB Output is correct
45 Correct 36 ms 836 KB Output is correct
46 Correct 69 ms 736 KB Output is correct
47 Correct 27 ms 764 KB Output is correct
48 Correct 40 ms 744 KB Output is correct
49 Correct 31 ms 684 KB Output is correct
50 Correct 347 ms 704 KB Output is correct
51 Correct 364 ms 524 KB Output is correct
52 Correct 344 ms 452 KB Output is correct
53 Correct 348 ms 464 KB Output is correct
54 Correct 334 ms 584 KB Output is correct
55 Correct 363 ms 464 KB Output is correct
56 Correct 313 ms 444 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory 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 19 ms 204 KB Output is correct
10 Correct 5 ms 204 KB Output is correct
11 Correct 12 ms 312 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 18 ms 316 KB Output is correct
14 Correct 11 ms 312 KB Output is correct
15 Correct 2 ms 320 KB Output is correct
16 Correct 10 ms 312 KB Output is correct
17 Correct 26 ms 204 KB Output is correct
18 Correct 14 ms 308 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 216 KB Output is correct
21 Correct 0 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 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 316 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 0 ms 304 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 320 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 8 ms 520 KB Output is correct
35 Correct 23 ms 724 KB Output is correct
36 Correct 35 ms 708 KB Output is correct
37 Correct 68 ms 708 KB Output is correct
38 Correct 77 ms 680 KB Output is correct
39 Correct 23 ms 704 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 16 ms 460 KB Output is correct
42 Correct 28 ms 644 KB Output is correct
43 Correct 6 ms 324 KB Output is correct
44 Correct 19 ms 596 KB Output is correct
45 Correct 22 ms 688 KB Output is correct
46 Correct 28 ms 700 KB Output is correct
47 Correct 10 ms 460 KB Output is correct
48 Correct 2 ms 324 KB Output is correct
49 Correct 66 ms 848 KB Output is correct
50 Correct 32 ms 768 KB Output is correct
51 Correct 48 ms 664 KB Output is correct
52 Correct 34 ms 836 KB Output is correct
53 Correct 36 ms 836 KB Output is correct
54 Correct 69 ms 736 KB Output is correct
55 Correct 27 ms 764 KB Output is correct
56 Correct 40 ms 744 KB Output is correct
57 Correct 31 ms 684 KB Output is correct
58 Correct 347 ms 704 KB Output is correct
59 Correct 364 ms 524 KB Output is correct
60 Correct 344 ms 452 KB Output is correct
61 Correct 348 ms 464 KB Output is correct
62 Correct 334 ms 584 KB Output is correct
63 Correct 363 ms 464 KB Output is correct
64 Correct 313 ms 444 KB Output is correct
65 Correct 0 ms 204 KB Output is correct
66 Incorrect 1 ms 204 KB Output isn't correct
67 Halted 0 ms 0 KB -