oj.uz

Submission #683536

# Submission time Handle Problem Language Result Execution time Memory
683536 2023-01-18T16:38:49 Z Ronin13 Chessboard (IZhO18_chessboard) C++14
47 / 100
 134 ms 3368 KB 
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<ll,ll>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;
/*
6 8
3 3 3 3
1 2 1 2
3 4 3 4
5 5 5 5
4 3 4 3
4 4 4 4
2 1 2 1
3 6 3 6
*/



ll C(ll x1, ll y1, ll x2, ll y2, ll a){

    ll X = (x1 / a);
    ll Y = (y1 / a);
    if((X + Y) & 1) return 1;
    return -1;

}

int main(){
  //  freopen("school.in", "r", stdin);
 // freopen("school.out", "w", stdout);
    ll n, k;
    cin >> n >> k;
    ll x1[k + 1], x2[k + 1], y1[k + 1], y2[k + 1];
    for(int i =  1; i <= k; ++i){
        cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
        x1[i]--;
        y1[i]--;
        x2[i]--;
        y2[i]--;
    }
    ll ans = 1e18 + 1;
    for(int a = 1; a <n; a++){
        if(n % a) continue;
        ll v = n / a;
        ll cnt = 0;
        if(v % 2 == 1)
            cnt += v * (v / 2) + (v + 1)  / 2;
        else cnt = v * v / 2;
        cnt *= a * a;
        for(int i = 1; i <= k; i++){
            ll X = (x1[i] / a);
            ll Y = (y1[i] / a);
            if((X + Y) & 1) cnt++;
            else cnt--;
        }
        ans = min(ans, cnt);
    }
    for(ll a = 1; a <n; a++){
        if(n % a) continue;
        ll v = n / a;
        ll cnt = -1;
        if(v % 2 == 1)
            cnt += v * (v / 2) + (v + 1) / 2;
        else cnt = v * v / 2;
        cnt *= a * a;
        for(int i = 1; i <= k; i++){
            ll X = (x1[i] / a);
            ll Y = (y1[i] / a);
            if((X + Y) & 1) cnt--;
            else cnt++;
        }
        ans = min(ans, cnt);
    }
    cout << ans;
    return 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 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 67 ms 2228 KB Output is correct
2 Correct 16 ms 800 KB Output is correct
3 Correct 43 ms 1492 KB Output is correct
4 Correct 44 ms 1620 KB Output is correct
5 Correct 79 ms 1980 KB Output is correct
6 Correct 35 ms 1364 KB Output is correct
7 Correct 8 ms 468 KB Output is correct
8 Correct 36 ms 1372 KB Output is correct
9 Correct 94 ms 3028 KB Output is correct
10 Correct 54 ms 1748 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 284 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 284 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 29 ms 1108 KB Output is correct
17 Correct 72 ms 2908 KB Output is correct
18 Correct 83 ms 3368 KB Output is correct
19 Correct 120 ms 3028 KB Output is correct
20 Correct 132 ms 3368 KB Output is correct
21 Correct 66 ms 2772 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 47 ms 1604 KB Output is correct
24 Correct 74 ms 3028 KB Output is correct
25 Correct 9 ms 556 KB Output is correct
26 Correct 50 ms 2040 KB Output is correct
27 Correct 58 ms 2388 KB Output is correct
28 Correct 80 ms 3264 KB Output is correct
29 Correct 28 ms 1236 KB Output is correct
30 Correct 3 ms 340 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2228 KB Output is correct
2 Correct 16 ms 800 KB Output is correct
3 Correct 43 ms 1492 KB Output is correct
4 Correct 44 ms 1620 KB Output is correct
5 Correct 79 ms 1980 KB Output is correct
6 Correct 35 ms 1364 KB Output is correct
7 Correct 8 ms 468 KB Output is correct
8 Correct 36 ms 1372 KB Output is correct
9 Correct 94 ms 3028 KB Output is correct
10 Correct 54 ms 1748 KB Output is correct
11 Correct 3 ms 212 KB Output is correct
12 Correct 1 ms 284 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 284 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 29 ms 1108 KB Output is correct
27 Correct 72 ms 2908 KB Output is correct
28 Correct 83 ms 3368 KB Output is correct
29 Correct 120 ms 3028 KB Output is correct
30 Correct 132 ms 3368 KB Output is correct
31 Correct 66 ms 2772 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 47 ms 1604 KB Output is correct
34 Correct 74 ms 3028 KB Output is correct
35 Correct 9 ms 556 KB Output is correct
36 Correct 50 ms 2040 KB Output is correct
37 Correct 58 ms 2388 KB Output is correct
38 Correct 80 ms 3264 KB Output is correct
39 Correct 28 ms 1236 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Incorrect 134 ms 2860 KB Output isn't correct
42 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 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 67 ms 2228 KB Output is correct
10 Correct 16 ms 800 KB Output is correct
11 Correct 43 ms 1492 KB Output is correct
12 Correct 44 ms 1620 KB Output is correct
13 Correct 79 ms 1980 KB Output is correct
14 Correct 35 ms 1364 KB Output is correct
15 Correct 8 ms 468 KB Output is correct
16 Correct 36 ms 1372 KB Output is correct
17 Correct 94 ms 3028 KB Output is correct
18 Correct 54 ms 1748 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 1 ms 284 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 284 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 29 ms 1108 KB Output is correct
35 Correct 72 ms 2908 KB Output is correct
36 Correct 83 ms 3368 KB Output is correct
37 Correct 120 ms 3028 KB Output is correct
38 Correct 132 ms 3368 KB Output is correct
39 Correct 66 ms 2772 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 47 ms 1604 KB Output is correct
42 Correct 74 ms 3028 KB Output is correct
43 Correct 9 ms 556 KB Output is correct
44 Correct 50 ms 2040 KB Output is correct
45 Correct 58 ms 2388 KB Output is correct
46 Correct 80 ms 3264 KB Output is correct
47 Correct 28 ms 1236 KB Output is correct
48 Correct 3 ms 340 KB Output is correct
49 Incorrect 134 ms 2860 KB Output isn't correct
50 Halted 0 ms 0 KB -