oj.uz

Submission #881001

# Submission time Handle Problem Language Result Execution time Memory
881001 2023-11-30T10:26:02 Z dimashhh Chessboard (IZhO18_chessboard) C++17
70 / 100
 965 ms 164552 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){
    ll ret = (odd[x1][k] - odd[x - 1][k]) * (even[y1][k] - even[y - 1][k]);
    ret += (even[x1][k] - even[x - 1][k]) *1ll* (odd[y1][k] - odd[y - 1][k]);
    return ret;
}
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);
    }
    res1 = ((n * n / del / del)+1) / 2 * (del * del) + res2 - res1;
    // cout << ((n * n / del / del) + 1) / 2 * del * del << '\n';
    return min(res1,n * n - res1);
}
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 - 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 424 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 103856 KB Output is correct
2 Correct 8 ms 25300 KB Output is correct
3 Correct 37 ms 137416 KB Output is correct
4 Correct 13 ms 8144 KB Output is correct
5 Correct 29 ms 95180 KB Output is correct
6 Correct 21 ms 81616 KB Output is correct
7 Correct 9 ms 39252 KB Output is correct
8 Correct 22 ms 81620 KB Output is correct
9 Correct 34 ms 56004 KB Output is correct
10 Correct 23 ms 66004 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 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 604 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 0 ms 348 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 488 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 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 604 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 0 ms 348 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 488 KB Output is correct
16 Correct 8 ms 4976 KB Output is correct
17 Correct 20 ms 7632 KB Output is correct
18 Correct 25 ms 8460 KB Output is correct
19 Correct 42 ms 7608 KB Output is correct
20 Correct 45 ms 8316 KB Output is correct
21 Correct 19 ms 7624 KB Output is correct
22 Correct 1 ms 3420 KB Output is correct
23 Correct 13 ms 5444 KB Output is correct
24 Correct 22 ms 8648 KB Output is correct
25 Correct 4 ms 3800 KB Output is correct
26 Correct 15 ms 6144 KB Output is correct
27 Correct 19 ms 7376 KB Output is correct
28 Correct 24 ms 8916 KB Output is correct
29 Correct 9 ms 5076 KB Output is correct
30 Correct 2 ms 3676 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 103856 KB Output is correct
2 Correct 8 ms 25300 KB Output is correct
3 Correct 37 ms 137416 KB Output is correct
4 Correct 13 ms 8144 KB Output is correct
5 Correct 29 ms 95180 KB Output is correct
6 Correct 21 ms 81616 KB Output is correct
7 Correct 9 ms 39252 KB Output is correct
8 Correct 22 ms 81620 KB Output is correct
9 Correct 34 ms 56004 KB Output is correct
10 Correct 23 ms 66004 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 1 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 604 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 0 ms 348 KB Output is correct
21 Correct 0 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 488 KB Output is correct
26 Correct 8 ms 4976 KB Output is correct
27 Correct 20 ms 7632 KB Output is correct
28 Correct 25 ms 8460 KB Output is correct
29 Correct 42 ms 7608 KB Output is correct
30 Correct 45 ms 8316 KB Output is correct
31 Correct 19 ms 7624 KB Output is correct
32 Correct 1 ms 3420 KB Output is correct
33 Correct 13 ms 5444 KB Output is correct
34 Correct 22 ms 8648 KB Output is correct
35 Correct 4 ms 3800 KB Output is correct
36 Correct 15 ms 6144 KB Output is correct
37 Correct 19 ms 7376 KB Output is correct
38 Correct 24 ms 8916 KB Output is correct
39 Correct 9 ms 5076 KB Output is correct
40 Correct 2 ms 3676 KB Output is correct
41 Correct 210 ms 163692 KB Output is correct
42 Correct 66 ms 164552 KB Output is correct
43 Correct 123 ms 164444 KB Output is correct
44 Correct 64 ms 164028 KB Output is correct
45 Correct 52 ms 163992 KB Output is correct
46 Correct 234 ms 164288 KB Output is correct
47 Correct 48 ms 162784 KB Output is correct
48 Correct 91 ms 164292 KB Output is correct
49 Correct 63 ms 163212 KB Output is correct
50 Correct 896 ms 138688 KB Output is correct
51 Correct 936 ms 138436 KB Output is correct
52 Correct 919 ms 138432 KB Output is correct
53 Correct 930 ms 139056 KB Output is correct
54 Correct 858 ms 138436 KB Output is correct
55 Correct 965 ms 138696 KB Output is correct
56 Correct 843 ms 138948 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 424 KB Output is correct
3 Correct 0 ms 604 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 43 ms 103856 KB Output is correct
10 Correct 8 ms 25300 KB Output is correct
11 Correct 37 ms 137416 KB Output is correct
12 Correct 13 ms 8144 KB Output is correct
13 Correct 29 ms 95180 KB Output is correct
14 Correct 21 ms 81616 KB Output is correct
15 Correct 9 ms 39252 KB Output is correct
16 Correct 22 ms 81620 KB Output is correct
17 Correct 34 ms 56004 KB Output is correct
18 Correct 23 ms 66004 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 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 604 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 0 ms 348 KB Output is correct
29 Correct 0 ms 604 KB Output is correct
30 Correct 0 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 488 KB Output is correct
34 Correct 8 ms 4976 KB Output is correct
35 Correct 20 ms 7632 KB Output is correct
36 Correct 25 ms 8460 KB Output is correct
37 Correct 42 ms 7608 KB Output is correct
38 Correct 45 ms 8316 KB Output is correct
39 Correct 19 ms 7624 KB Output is correct
40 Correct 1 ms 3420 KB Output is correct
41 Correct 13 ms 5444 KB Output is correct
42 Correct 22 ms 8648 KB Output is correct
43 Correct 4 ms 3800 KB Output is correct
44 Correct 15 ms 6144 KB Output is correct
45 Correct 19 ms 7376 KB Output is correct
46 Correct 24 ms 8916 KB Output is correct
47 Correct 9 ms 5076 KB Output is correct
48 Correct 2 ms 3676 KB Output is correct
49 Correct 210 ms 163692 KB Output is correct
50 Correct 66 ms 164552 KB Output is correct
51 Correct 123 ms 164444 KB Output is correct
52 Correct 64 ms 164028 KB Output is correct
53 Correct 52 ms 163992 KB Output is correct
54 Correct 234 ms 164288 KB Output is correct
55 Correct 48 ms 162784 KB Output is correct
56 Correct 91 ms 164292 KB Output is correct
57 Correct 63 ms 163212 KB Output is correct
58 Correct 896 ms 138688 KB Output is correct
59 Correct 936 ms 138436 KB Output is correct
60 Correct 919 ms 138432 KB Output is correct
61 Correct 930 ms 139056 KB Output is correct
62 Correct 858 ms 138436 KB Output is correct
63 Correct 965 ms 138696 KB Output is correct
64 Correct 843 ms 138948 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 860 ms 139076 KB Output is correct
68 Correct 870 ms 138184 KB Output is correct
69 Correct 693 ms 138436 KB Output is correct
70 Incorrect 509 ms 138180 KB Output isn't correct
71 Halted 0 ms 0 KB -