oj.uz

Submission #488078

# Submission time Handle Problem Language Result Execution time Memory
488078 2021-11-17T15:38:26 Z nickmet2004 Chessboard (IZhO18_chessboard) C++11
70 / 100
 197 ms 5704 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N= 1e5 + 5;
int n , k;
int A[N] , B[N] , C[N] , D[N];
int cnt[2];
int ans = 1e18;
void q(int x){
    int sz = n / x;
    for(int i = 0; i < k; ++i){
        cnt[(B[i] /x + A[i] / x) % 2]++;
    }
    int bk = ((n*n / (x * x)) / 2) * x * x ,ok = 0;
    if(sz % 2 == 1) ok = 1;
    int Y = bk - cnt[1] + cnt[0];
    ans = min(ans , Y);
    bk = (((n * n) / (x * x)) - ((n*n / (x * x)) / 2)) * x * x;
    Y = bk - cnt[0] + cnt[1];
    ans = min(ans, Y);
    cnt[0]=cnt[1]=0;
    //cout << endl;
}
 main (){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> k;
    for(int i = 0; i < k; ++i){
        cin >> A[i] >> B[i] >> C[i] >> D[i];
        --A[i] , --B[i] , --C[i] , --D[i];
    }//cout << endl;
    for(int i = 1; i * i <=n; ++i){
        if(n % i ==0){
            if((n / i) != n)q(n/i);
            if((n/i) != i)q(i);
        }
    }
    cout << ans;
}

Compilation message

chessboard.cpp: In function 'void q(long long int)':
chessboard.cpp:14:45: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
   14 |     int bk = ((n*n / (x * x)) / 2) * x * x ,ok = 0;
      |                                             ^~
chessboard.cpp: At global scope:
chessboard.cpp:24:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   24 |  main (){
      |  ^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 18 ms 2216 KB Output is correct
2 Correct 6 ms 1104 KB Output is correct
3 Correct 12 ms 2408 KB Output is correct
4 Correct 13 ms 2512 KB Output is correct
5 Correct 19 ms 3340 KB Output is correct
6 Correct 11 ms 2232 KB Output is correct
7 Correct 2 ms 720 KB Output is correct
8 Correct 11 ms 2256 KB Output is correct
9 Correct 28 ms 5216 KB Output is correct
10 Correct 16 ms 3028 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 288 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 288 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 8 ms 1616 KB Output is correct
17 Correct 21 ms 4264 KB Output is correct
18 Correct 28 ms 4948 KB Output is correct
19 Correct 51 ms 4580 KB Output is correct
20 Correct 59 ms 4912 KB Output is correct
21 Correct 22 ms 4164 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 14 ms 2260 KB Output is correct
24 Correct 27 ms 4564 KB Output is correct
25 Correct 3 ms 720 KB Output is correct
26 Correct 18 ms 2940 KB Output is correct
27 Correct 22 ms 3548 KB Output is correct
28 Correct 27 ms 4776 KB Output is correct
29 Correct 8 ms 1872 KB Output is correct
30 Correct 2 ms 336 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 2216 KB Output is correct
2 Correct 6 ms 1104 KB Output is correct
3 Correct 12 ms 2408 KB Output is correct
4 Correct 13 ms 2512 KB Output is correct
5 Correct 19 ms 3340 KB Output is correct
6 Correct 11 ms 2232 KB Output is correct
7 Correct 2 ms 720 KB Output is correct
8 Correct 11 ms 2256 KB Output is correct
9 Correct 28 ms 5216 KB Output is correct
10 Correct 16 ms 3028 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 1 ms 288 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 0 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 8 ms 1616 KB Output is correct
27 Correct 21 ms 4264 KB Output is correct
28 Correct 28 ms 4948 KB Output is correct
29 Correct 51 ms 4580 KB Output is correct
30 Correct 59 ms 4912 KB Output is correct
31 Correct 22 ms 4164 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 14 ms 2260 KB Output is correct
34 Correct 27 ms 4564 KB Output is correct
35 Correct 3 ms 720 KB Output is correct
36 Correct 18 ms 2940 KB Output is correct
37 Correct 22 ms 3548 KB Output is correct
38 Correct 27 ms 4776 KB Output is correct
39 Correct 8 ms 1872 KB Output is correct
40 Correct 2 ms 336 KB Output is correct
41 Correct 51 ms 4892 KB Output is correct
42 Correct 34 ms 5528 KB Output is correct
43 Correct 36 ms 4820 KB Output is correct
44 Correct 29 ms 5340 KB Output is correct
45 Correct 29 ms 5700 KB Output is correct
46 Correct 59 ms 5448 KB Output is correct
47 Correct 26 ms 5072 KB Output is correct
48 Correct 34 ms 5132 KB Output is correct
49 Correct 28 ms 4840 KB Output is correct
50 Correct 184 ms 5332 KB Output is correct
51 Correct 190 ms 5576 KB Output is correct
52 Correct 179 ms 5288 KB Output is correct
53 Correct 191 ms 5576 KB Output is correct
54 Correct 180 ms 5224 KB Output is correct
55 Correct 197 ms 5704 KB Output is correct
56 Correct 175 ms 5076 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 18 ms 2216 KB Output is correct
10 Correct 6 ms 1104 KB Output is correct
11 Correct 12 ms 2408 KB Output is correct
12 Correct 13 ms 2512 KB Output is correct
13 Correct 19 ms 3340 KB Output is correct
14 Correct 11 ms 2232 KB Output is correct
15 Correct 2 ms 720 KB Output is correct
16 Correct 11 ms 2256 KB Output is correct
17 Correct 28 ms 5216 KB Output is correct
18 Correct 16 ms 3028 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 336 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 0 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 0 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 8 ms 1616 KB Output is correct
35 Correct 21 ms 4264 KB Output is correct
36 Correct 28 ms 4948 KB Output is correct
37 Correct 51 ms 4580 KB Output is correct
38 Correct 59 ms 4912 KB Output is correct
39 Correct 22 ms 4164 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 14 ms 2260 KB Output is correct
42 Correct 27 ms 4564 KB Output is correct
43 Correct 3 ms 720 KB Output is correct
44 Correct 18 ms 2940 KB Output is correct
45 Correct 22 ms 3548 KB Output is correct
46 Correct 27 ms 4776 KB Output is correct
47 Correct 8 ms 1872 KB Output is correct
48 Correct 2 ms 336 KB Output is correct
49 Correct 51 ms 4892 KB Output is correct
50 Correct 34 ms 5528 KB Output is correct
51 Correct 36 ms 4820 KB Output is correct
52 Correct 29 ms 5340 KB Output is correct
53 Correct 29 ms 5700 KB Output is correct
54 Correct 59 ms 5448 KB Output is correct
55 Correct 26 ms 5072 KB Output is correct
56 Correct 34 ms 5132 KB Output is correct
57 Correct 28 ms 4840 KB Output is correct
58 Correct 184 ms 5332 KB Output is correct
59 Correct 190 ms 5576 KB Output is correct
60 Correct 179 ms 5288 KB Output is correct
61 Correct 191 ms 5576 KB Output is correct
62 Correct 180 ms 5224 KB Output is correct
63 Correct 197 ms 5704 KB Output is correct
64 Correct 175 ms 5076 KB Output is correct
65 Correct 0 ms 336 KB Output is correct
66 Incorrect 0 ms 336 KB Output isn't correct
67 Halted 0 ms 0 KB -