oj.uz

Submission #880802

# Submission time Handle Problem Language Result Execution time Memory
880802 2023-11-30T05:14:22 Z dimashhh Chessboard (IZhO18_chessboard) C++17
70 / 100
 893 ms 83392 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1e5 + 1;
int odd[N][101],even[N][101],it = 0;
#define int long long
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:61:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   61 | main(){
      | ^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 53460 KB Output is correct
2 Correct 7 ms 13016 KB Output is correct
3 Correct 22 ms 70100 KB Output is correct
4 Correct 16 ms 5076 KB Output is correct
5 Correct 27 ms 49244 KB Output is correct
6 Correct 17 ms 42372 KB Output is correct
7 Correct 7 ms 21184 KB Output is correct
8 Correct 23 ms 42496 KB Output is correct
9 Correct 32 ms 30928 KB Output is correct
10 Correct 29 ms 34796 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 1 ms 356 KB Output is correct
4 Correct 1 ms 612 KB Output is correct
5 Correct 1 ms 536 KB Output is correct
6 Correct 1 ms 496 KB Output is correct
7 Correct 1 ms 360 KB Output is correct
8 Correct 1 ms 360 KB Output is correct
9 Correct 0 ms 360 KB Output is correct
10 Correct 0 ms 612 KB Output is correct
11 Correct 1 ms 360 KB Output is correct
12 Correct 1 ms 360 KB Output is correct
13 Correct 1 ms 360 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 1 ms 356 KB Output is correct
4 Correct 1 ms 612 KB Output is correct
5 Correct 1 ms 536 KB Output is correct
6 Correct 1 ms 496 KB Output is correct
7 Correct 1 ms 360 KB Output is correct
8 Correct 1 ms 360 KB Output is correct
9 Correct 0 ms 360 KB Output is correct
10 Correct 0 ms 612 KB Output is correct
11 Correct 1 ms 360 KB Output is correct
12 Correct 1 ms 360 KB Output is correct
13 Correct 1 ms 360 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 7 ms 4056 KB Output is correct
17 Correct 28 ms 5652 KB Output is correct
18 Correct 27 ms 6248 KB Output is correct
19 Correct 38 ms 6736 KB Output is correct
20 Correct 45 ms 6620 KB Output is correct
21 Correct 27 ms 6956 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 13 ms 4536 KB Output is correct
24 Correct 31 ms 5804 KB Output is correct
25 Correct 5 ms 3292 KB Output is correct
26 Correct 18 ms 4976 KB Output is correct
27 Correct 22 ms 6352 KB Output is correct
28 Correct 27 ms 6052 KB Output is correct
29 Correct 10 ms 4104 KB Output is correct
30 Correct 2 ms 3164 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 53460 KB Output is correct
2 Correct 7 ms 13016 KB Output is correct
3 Correct 22 ms 70100 KB Output is correct
4 Correct 16 ms 5076 KB Output is correct
5 Correct 27 ms 49244 KB Output is correct
6 Correct 17 ms 42372 KB Output is correct
7 Correct 7 ms 21184 KB Output is correct
8 Correct 23 ms 42496 KB Output is correct
9 Correct 32 ms 30928 KB Output is correct
10 Correct 29 ms 34796 KB Output is correct
11 Correct 1 ms 356 KB Output is correct
12 Correct 0 ms 352 KB Output is correct
13 Correct 1 ms 356 KB Output is correct
14 Correct 1 ms 612 KB Output is correct
15 Correct 1 ms 536 KB Output is correct
16 Correct 1 ms 496 KB Output is correct
17 Correct 1 ms 360 KB Output is correct
18 Correct 1 ms 360 KB Output is correct
19 Correct 0 ms 360 KB Output is correct
20 Correct 0 ms 612 KB Output is correct
21 Correct 1 ms 360 KB Output is correct
22 Correct 1 ms 360 KB Output is correct
23 Correct 1 ms 360 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 7 ms 4056 KB Output is correct
27 Correct 28 ms 5652 KB Output is correct
28 Correct 27 ms 6248 KB Output is correct
29 Correct 38 ms 6736 KB Output is correct
30 Correct 45 ms 6620 KB Output is correct
31 Correct 27 ms 6956 KB Output is correct
32 Correct 1 ms 2904 KB Output is correct
33 Correct 13 ms 4536 KB Output is correct
34 Correct 31 ms 5804 KB Output is correct
35 Correct 5 ms 3292 KB Output is correct
36 Correct 18 ms 4976 KB Output is correct
37 Correct 22 ms 6352 KB Output is correct
38 Correct 27 ms 6052 KB Output is correct
39 Correct 10 ms 4104 KB Output is correct
40 Correct 2 ms 3164 KB Output is correct
41 Correct 197 ms 81872 KB Output is correct
42 Correct 63 ms 82880 KB Output is correct
43 Correct 102 ms 82116 KB Output is correct
44 Correct 62 ms 82392 KB Output is correct
45 Correct 47 ms 82368 KB Output is correct
46 Correct 214 ms 82368 KB Output is correct
47 Correct 44 ms 83160 KB Output is correct
48 Correct 75 ms 82112 KB Output is correct
49 Correct 54 ms 83392 KB Output is correct
50 Correct 893 ms 70948 KB Output is correct
51 Correct 870 ms 71004 KB Output is correct
52 Correct 787 ms 70848 KB Output is correct
53 Correct 751 ms 71632 KB Output is correct
54 Correct 750 ms 71744 KB Output is correct
55 Correct 862 ms 71264 KB Output is correct
56 Correct 669 ms 71192 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 31 ms 53460 KB Output is correct
10 Correct 7 ms 13016 KB Output is correct
11 Correct 22 ms 70100 KB Output is correct
12 Correct 16 ms 5076 KB Output is correct
13 Correct 27 ms 49244 KB Output is correct
14 Correct 17 ms 42372 KB Output is correct
15 Correct 7 ms 21184 KB Output is correct
16 Correct 23 ms 42496 KB Output is correct
17 Correct 32 ms 30928 KB Output is correct
18 Correct 29 ms 34796 KB Output is correct
19 Correct 1 ms 356 KB Output is correct
20 Correct 0 ms 352 KB Output is correct
21 Correct 1 ms 356 KB Output is correct
22 Correct 1 ms 612 KB Output is correct
23 Correct 1 ms 536 KB Output is correct
24 Correct 1 ms 496 KB Output is correct
25 Correct 1 ms 360 KB Output is correct
26 Correct 1 ms 360 KB Output is correct
27 Correct 0 ms 360 KB Output is correct
28 Correct 0 ms 612 KB Output is correct
29 Correct 1 ms 360 KB Output is correct
30 Correct 1 ms 360 KB Output is correct
31 Correct 1 ms 360 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 7 ms 4056 KB Output is correct
35 Correct 28 ms 5652 KB Output is correct
36 Correct 27 ms 6248 KB Output is correct
37 Correct 38 ms 6736 KB Output is correct
38 Correct 45 ms 6620 KB Output is correct
39 Correct 27 ms 6956 KB Output is correct
40 Correct 1 ms 2904 KB Output is correct
41 Correct 13 ms 4536 KB Output is correct
42 Correct 31 ms 5804 KB Output is correct
43 Correct 5 ms 3292 KB Output is correct
44 Correct 18 ms 4976 KB Output is correct
45 Correct 22 ms 6352 KB Output is correct
46 Correct 27 ms 6052 KB Output is correct
47 Correct 10 ms 4104 KB Output is correct
48 Correct 2 ms 3164 KB Output is correct
49 Correct 197 ms 81872 KB Output is correct
50 Correct 63 ms 82880 KB Output is correct
51 Correct 102 ms 82116 KB Output is correct
52 Correct 62 ms 82392 KB Output is correct
53 Correct 47 ms 82368 KB Output is correct
54 Correct 214 ms 82368 KB Output is correct
55 Correct 44 ms 83160 KB Output is correct
56 Correct 75 ms 82112 KB Output is correct
57 Correct 54 ms 83392 KB Output is correct
58 Correct 893 ms 70948 KB Output is correct
59 Correct 870 ms 71004 KB Output is correct
60 Correct 787 ms 70848 KB Output is correct
61 Correct 751 ms 71632 KB Output is correct
62 Correct 750 ms 71744 KB Output is correct
63 Correct 862 ms 71264 KB Output is correct
64 Correct 669 ms 71192 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 641 ms 70992 KB Output is correct
68 Correct 736 ms 73160 KB Output is correct
69 Correct 486 ms 73152 KB Output is correct
70 Incorrect 451 ms 73156 KB Output isn't correct
71 Halted 0 ms 0 KB -