oj.uz

Submission #378528

# Submission time Handle Problem Language Result Execution time Memory
378528 2021-03-17T01:27:22 Z jass921026 Chessboard (IZhO18_chessboard) C++14
70 / 100
 258 ms 1324 KB 
#include<bits/stdc++.h>
using namespace std;
#define jizz ios_base::sync_with_stdio(false);cin.tie(NULL);
typedef long long ll;
typedef pair<int,int> pii;
#define F first
#define S second
#define FOR(i,n) for(int i=0;i<n;i++)
#define FOO(i,a,b) for(int i=a;i<=b;i++)
#define OOF(i,a,b) for(int i=a;i>=b;i--)
#define ALL(x) (x).begin(),(x).end()
#define pb push_back
#define mkp make_pair
const int MAXN=1E5+10;
ll n, k;
pii point[MAXN];
ll solve(ll i){
    ll col=i*i*(((n/i)*(n/i)+1)/2), rights=0, wrongs=0;
    for(int j=0;j<k;j++){
        if((point[j].F/i)%2==(point[j].S/i)%2){
            rights++;
        } else{
            wrongs++;
        }
    }
    return min(col-rights+wrongs,(n*n-col)-wrongs+rights);
}
int main(){ jizz
    cin>>n>>k;
    FOR(i,k){
        int x1, y1, x2, y2;
        cin>>x1>>y1>>x2>>y2;
        point[i]=mkp(x1-1,y1-1);
    }
    ll ans=n*n;
    for(ll i=1;i*i<=n;i++){
        if(n%i==0){
            ans=min(ans,solve(i));
            if(n/i<n) ans=min(ans,solve(n/i));
        }
    }
    cout<<ans<<"\n";
    return 0;
}
/*
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
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 0 ms 364 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 876 KB Output is correct
2 Correct 6 ms 492 KB Output is correct
3 Correct 15 ms 672 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 21 ms 748 KB Output is correct
6 Correct 13 ms 620 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 13 ms 620 KB Output is correct
9 Correct 41 ms 1004 KB Output is correct
10 Correct 19 ms 748 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 380 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 380 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 10 ms 492 KB Output is correct
17 Correct 27 ms 1004 KB Output is correct
18 Correct 34 ms 1132 KB Output is correct
19 Correct 67 ms 1004 KB Output is correct
20 Correct 76 ms 1260 KB Output is correct
21 Correct 26 ms 1004 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 18 ms 620 KB Output is correct
24 Correct 31 ms 1004 KB Output is correct
25 Correct 4 ms 364 KB Output is correct
26 Correct 21 ms 748 KB Output is correct
27 Correct 26 ms 876 KB Output is correct
28 Correct 33 ms 1152 KB Output is correct
29 Correct 11 ms 620 KB Output is correct
30 Correct 1 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 876 KB Output is correct
2 Correct 6 ms 492 KB Output is correct
3 Correct 15 ms 672 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 21 ms 748 KB Output is correct
6 Correct 13 ms 620 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 13 ms 620 KB Output is correct
9 Correct 41 ms 1004 KB Output is correct
10 Correct 19 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 380 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 10 ms 492 KB Output is correct
27 Correct 27 ms 1004 KB Output is correct
28 Correct 34 ms 1132 KB Output is correct
29 Correct 67 ms 1004 KB Output is correct
30 Correct 76 ms 1260 KB Output is correct
31 Correct 26 ms 1004 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 18 ms 620 KB Output is correct
34 Correct 31 ms 1004 KB Output is correct
35 Correct 4 ms 364 KB Output is correct
36 Correct 21 ms 748 KB Output is correct
37 Correct 26 ms 876 KB Output is correct
38 Correct 33 ms 1152 KB Output is correct
39 Correct 11 ms 620 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 65 ms 992 KB Output is correct
42 Correct 38 ms 1132 KB Output is correct
43 Correct 46 ms 1004 KB Output is correct
44 Correct 37 ms 1004 KB Output is correct
45 Correct 36 ms 1132 KB Output is correct
46 Correct 71 ms 1132 KB Output is correct
47 Correct 32 ms 1004 KB Output is correct
48 Correct 41 ms 1004 KB Output is correct
49 Correct 35 ms 1004 KB Output is correct
50 Correct 233 ms 1004 KB Output is correct
51 Correct 252 ms 1132 KB Output is correct
52 Correct 233 ms 1132 KB Output is correct
53 Correct 247 ms 1324 KB Output is correct
54 Correct 228 ms 1004 KB Output is correct
55 Correct 258 ms 1260 KB Output is correct
56 Correct 222 ms 1004 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 0 ms 364 KB Output is correct
9 Correct 23 ms 876 KB Output is correct
10 Correct 6 ms 492 KB Output is correct
11 Correct 15 ms 672 KB Output is correct
12 Correct 16 ms 748 KB Output is correct
13 Correct 21 ms 748 KB Output is correct
14 Correct 13 ms 620 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
16 Correct 13 ms 620 KB Output is correct
17 Correct 41 ms 1004 KB Output is correct
18 Correct 19 ms 748 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 380 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 10 ms 492 KB Output is correct
35 Correct 27 ms 1004 KB Output is correct
36 Correct 34 ms 1132 KB Output is correct
37 Correct 67 ms 1004 KB Output is correct
38 Correct 76 ms 1260 KB Output is correct
39 Correct 26 ms 1004 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 18 ms 620 KB Output is correct
42 Correct 31 ms 1004 KB Output is correct
43 Correct 4 ms 364 KB Output is correct
44 Correct 21 ms 748 KB Output is correct
45 Correct 26 ms 876 KB Output is correct
46 Correct 33 ms 1152 KB Output is correct
47 Correct 11 ms 620 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 65 ms 992 KB Output is correct
50 Correct 38 ms 1132 KB Output is correct
51 Correct 46 ms 1004 KB Output is correct
52 Correct 37 ms 1004 KB Output is correct
53 Correct 36 ms 1132 KB Output is correct
54 Correct 71 ms 1132 KB Output is correct
55 Correct 32 ms 1004 KB Output is correct
56 Correct 41 ms 1004 KB Output is correct
57 Correct 35 ms 1004 KB Output is correct
58 Correct 233 ms 1004 KB Output is correct
59 Correct 252 ms 1132 KB Output is correct
60 Correct 233 ms 1132 KB Output is correct
61 Correct 247 ms 1324 KB Output is correct
62 Correct 228 ms 1004 KB Output is correct
63 Correct 258 ms 1260 KB Output is correct
64 Correct 222 ms 1004 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Incorrect 1 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -