oj.uz

Submission #880803

# Submission time Handle Problem Language Result Execution time Memory
880803 2023-11-30T05:15:08 Z dimashhh Chessboard (IZhO18_chessboard) C++17
70 / 100
 803 ms 161872 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1e5 + 1;

#define int long long
int odd[N][101],even[N][101],it = 0;
ll col_eq(int k,int x,int y,int x1,int y1){
    ll ret = (odd[x1][k] - odd[x - 1][k]) * (odd[y1][k] - odd[y - 1][k]);
    ret += (even[x1][k] - even[x - 1][k]) *1ll* (even[y1][k] - even[y - 1][k]);
    return ret;
}
ll col_non_eq(int k,int x,int y,int x1,int y1){
    return (x1 - x + 1) *1ll* (y1 - y + 1) - col_eq(k,x,y,x1,y1);
}
vector<pair<pair<int,int>,pair<int,int>>> a;
ll n,k;
int get(ll del,ll i){
    ll res1 = 0,res2 = 0;
    for(auto [x,y]:a){
        res1 += col_eq(i,x.first,x.second,y.first,y.second);
        res2 += col_non_eq(i,x.first,x.second,y.first,y.second);
    }
    ll x = res1;
    res1 = ((n * n / del / del) + 1) / 2 * (del * del) - res1 + res2;
    res2 = ((n * n / del / del)) / 2 * (del * del) + x - res2;
    // cout << ((n * n / del / del) + 1) / 2 * del * del - res2 << '\n';
    return min(res1,res2);
}
void test(){
    cin >> n >> k;
    for(int i = 1;i <= k;i++){
        int x,y,x1,y1;
        cin >> x >> y >> x1 >> y1;
        a.push_back({{x,y},{x1,y1}});
    }
    ll res = 1e10;
    for(int i = 1;i < n;i++){
        if(n % i == 0){
            for(int j = 1;j <= n;j++){
                int x = (j + i - 1) / i;
                odd[j][it] = odd[j - 1][it];
                even[j][it] = even[j - 1][it];
                if(x & 1){
                    odd[j][it]++;
                }else{
                    even[j][it]++;
                }
            }
            it++;
        }
    }
    it = 0;
    for(int i = 1;i < n;i++){
        if(n % i == 0){
            res = min(res,1ll*get(i,it));
            it++;
        }
    }
    cout << res;
}
main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    test();
}

Compilation message

chessboard.cpp:62:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   62 | main(){
      | ^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 616 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 856 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 102332 KB Output is correct
2 Correct 8 ms 24792 KB Output is correct
3 Correct 30 ms 136396 KB Output is correct
4 Correct 12 ms 7376 KB Output is correct
5 Correct 27 ms 93864 KB Output is correct
6 Correct 21 ms 80852 KB Output is correct
7 Correct 7 ms 38876 KB Output is correct
8 Correct 21 ms 80848 KB Output is correct
9 Correct 39 ms 53956 KB Output is correct
10 Correct 22 ms 64976 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 7 ms 4308 KB Output is correct
17 Correct 18 ms 6608 KB Output is correct
18 Correct 23 ms 7360 KB Output is correct
19 Correct 34 ms 7128 KB Output is correct
20 Correct 37 ms 7364 KB Output is correct
21 Correct 18 ms 6340 KB Output is correct
22 Correct 1 ms 3420 KB Output is correct
23 Correct 12 ms 4820 KB Output is correct
24 Correct 20 ms 6604 KB Output is correct
25 Correct 3 ms 3800 KB Output is correct
26 Correct 14 ms 5332 KB Output is correct
27 Correct 18 ms 6096 KB Output is correct
28 Correct 27 ms 6616 KB Output is correct
29 Correct 8 ms 4564 KB Output is correct
30 Correct 1 ms 3672 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 102332 KB Output is correct
2 Correct 8 ms 24792 KB Output is correct
3 Correct 30 ms 136396 KB Output is correct
4 Correct 12 ms 7376 KB Output is correct
5 Correct 27 ms 93864 KB Output is correct
6 Correct 21 ms 80852 KB Output is correct
7 Correct 7 ms 38876 KB Output is correct
8 Correct 21 ms 80848 KB Output is correct
9 Correct 39 ms 53956 KB Output is correct
10 Correct 22 ms 64976 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 0 ms 604 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 600 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 0 ms 604 KB Output is correct
25 Correct 0 ms 604 KB Output is correct
26 Correct 7 ms 4308 KB Output is correct
27 Correct 18 ms 6608 KB Output is correct
28 Correct 23 ms 7360 KB Output is correct
29 Correct 34 ms 7128 KB Output is correct
30 Correct 37 ms 7364 KB Output is correct
31 Correct 18 ms 6340 KB Output is correct
32 Correct 1 ms 3420 KB Output is correct
33 Correct 12 ms 4820 KB Output is correct
34 Correct 20 ms 6604 KB Output is correct
35 Correct 3 ms 3800 KB Output is correct
36 Correct 14 ms 5332 KB Output is correct
37 Correct 18 ms 6096 KB Output is correct
38 Correct 27 ms 6616 KB Output is correct
39 Correct 8 ms 4564 KB Output is correct
40 Correct 1 ms 3672 KB Output is correct
41 Correct 177 ms 160848 KB Output is correct
42 Correct 60 ms 161472 KB Output is correct
43 Correct 106 ms 160960 KB Output is correct
44 Correct 68 ms 161872 KB Output is correct
45 Correct 47 ms 161476 KB Output is correct
46 Correct 180 ms 161212 KB Output is correct
47 Correct 52 ms 161728 KB Output is correct
48 Correct 77 ms 161472 KB Output is correct
49 Correct 56 ms 161328 KB Output is correct
50 Correct 769 ms 136064 KB Output is correct
51 Correct 803 ms 136640 KB Output is correct
52 Correct 686 ms 135896 KB Output is correct
53 Correct 773 ms 136152 KB Output is correct
54 Correct 724 ms 135888 KB Output is correct
55 Correct 752 ms 136364 KB Output is correct
56 Correct 724 ms 136628 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 616 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 856 KB Output is correct
9 Correct 32 ms 102332 KB Output is correct
10 Correct 8 ms 24792 KB Output is correct
11 Correct 30 ms 136396 KB Output is correct
12 Correct 12 ms 7376 KB Output is correct
13 Correct 27 ms 93864 KB Output is correct
14 Correct 21 ms 80852 KB Output is correct
15 Correct 7 ms 38876 KB Output is correct
16 Correct 21 ms 80848 KB Output is correct
17 Correct 39 ms 53956 KB Output is correct
18 Correct 22 ms 64976 KB Output is correct
19 Correct 0 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 600 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 600 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 0 ms 604 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 600 KB Output is correct
30 Correct 0 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 0 ms 604 KB Output is correct
33 Correct 0 ms 604 KB Output is correct
34 Correct 7 ms 4308 KB Output is correct
35 Correct 18 ms 6608 KB Output is correct
36 Correct 23 ms 7360 KB Output is correct
37 Correct 34 ms 7128 KB Output is correct
38 Correct 37 ms 7364 KB Output is correct
39 Correct 18 ms 6340 KB Output is correct
40 Correct 1 ms 3420 KB Output is correct
41 Correct 12 ms 4820 KB Output is correct
42 Correct 20 ms 6604 KB Output is correct
43 Correct 3 ms 3800 KB Output is correct
44 Correct 14 ms 5332 KB Output is correct
45 Correct 18 ms 6096 KB Output is correct
46 Correct 27 ms 6616 KB Output is correct
47 Correct 8 ms 4564 KB Output is correct
48 Correct 1 ms 3672 KB Output is correct
49 Correct 177 ms 160848 KB Output is correct
50 Correct 60 ms 161472 KB Output is correct
51 Correct 106 ms 160960 KB Output is correct
52 Correct 68 ms 161872 KB Output is correct
53 Correct 47 ms 161476 KB Output is correct
54 Correct 180 ms 161212 KB Output is correct
55 Correct 52 ms 161728 KB Output is correct
56 Correct 77 ms 161472 KB Output is correct
57 Correct 56 ms 161328 KB Output is correct
58 Correct 769 ms 136064 KB Output is correct
59 Correct 803 ms 136640 KB Output is correct
60 Correct 686 ms 135896 KB Output is correct
61 Correct 773 ms 136152 KB Output is correct
62 Correct 724 ms 135888 KB Output is correct
63 Correct 752 ms 136364 KB Output is correct
64 Correct 724 ms 136628 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 705 ms 137052 KB Output is correct
68 Correct 673 ms 136148 KB Output is correct
69 Correct 558 ms 135880 KB Output is correct
70 Incorrect 484 ms 137156 KB Output isn't correct
71 Halted 0 ms 0 KB -