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Submission #490794

# Submission time Handle Problem Language Result Execution time Memory
490794 2021-11-29T09:42:38 Z infertechno2 Chessboard (IZhO18_chessboard) C++14
70 / 100
 224 ms 7256 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const ll Size=1e5+1;

class point2d{
public:
    ll x,y;
};

point2d top[Size],bot[Size];
pair<ll,ll> ans[Size];

void solve(){
    ll n,k;
    cin>>n>>k;
    for(ll i=0;i<=n;i++){
        ans[i].first=1e18;
        ans[i].second=1e18;
    }
    for(ll i=0;i<k;i++){
        cin>>top[i].y>>top[i].x>>bot[i].y>>bot[i].x;
        top[i].y--;
        top[i].x--;
        bot[i].y--;
        bot[i].x--;
    }
    for(ll i=n/2;i>=1;i--){
        if(n%i==0){
            if((n/i)%2==1){
                ans[i].first=((n/i/2)*(n/i/2+1)*i*i)*2;
                ans[i].second=ans[i].first+i*i;
            }else{
                ans[i].first=n*n/2;
                ans[i].second=n*n/2;
            }
        }
    }
    ll best_ans=1e18;
    for(ll i=1;i<=n/2;i++){
        if(ans[i].first!=1e18){
            for(ll j=0;j<k;j++){
                if(((top[j].x/i)+(top[j].y/i))%2==1){
                    ans[i].first--;
                    ans[i].second++;
                }else{
                    ans[i].first++;
                    ans[i].second--;
                }
            }
            best_ans=min(best_ans,min(ans[i].first,ans[i].second));
        }
    }
    cout<<best_ans<<endl;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll t=1;
    while(t--){
        solve();
    }
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 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 22 ms 4020 KB Output is correct
2 Correct 5 ms 1356 KB Output is correct
3 Correct 13 ms 3780 KB Output is correct
4 Correct 15 ms 2604 KB Output is correct
5 Correct 17 ms 4108 KB Output is correct
6 Correct 11 ms 2892 KB Output is correct
7 Correct 3 ms 972 KB Output is correct
8 Correct 12 ms 2964 KB Output is correct
9 Correct 36 ms 5684 KB Output is correct
10 Correct 15 ms 3660 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 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 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 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 9 ms 1612 KB Output is correct
17 Correct 21 ms 4264 KB Output is correct
18 Correct 27 ms 4976 KB Output is correct
19 Correct 56 ms 4436 KB Output is correct
20 Correct 65 ms 4996 KB Output is correct
21 Correct 23 ms 4144 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 14 ms 2364 KB Output is correct
24 Correct 25 ms 4608 KB Output is correct
25 Correct 3 ms 716 KB Output is correct
26 Correct 17 ms 3024 KB Output is correct
27 Correct 21 ms 3536 KB Output is correct
28 Correct 27 ms 4816 KB Output is correct
29 Correct 9 ms 1864 KB Output is correct
30 Correct 1 ms 460 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 4020 KB Output is correct
2 Correct 5 ms 1356 KB Output is correct
3 Correct 13 ms 3780 KB Output is correct
4 Correct 15 ms 2604 KB Output is correct
5 Correct 17 ms 4108 KB Output is correct
6 Correct 11 ms 2892 KB Output is correct
7 Correct 3 ms 972 KB Output is correct
8 Correct 12 ms 2964 KB Output is correct
9 Correct 36 ms 5684 KB Output is correct
10 Correct 15 ms 3660 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 9 ms 1612 KB Output is correct
27 Correct 21 ms 4264 KB Output is correct
28 Correct 27 ms 4976 KB Output is correct
29 Correct 56 ms 4436 KB Output is correct
30 Correct 65 ms 4996 KB Output is correct
31 Correct 23 ms 4144 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 14 ms 2364 KB Output is correct
34 Correct 25 ms 4608 KB Output is correct
35 Correct 3 ms 716 KB Output is correct
36 Correct 17 ms 3024 KB Output is correct
37 Correct 21 ms 3536 KB Output is correct
38 Correct 27 ms 4816 KB Output is correct
39 Correct 9 ms 1864 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 60 ms 6388 KB Output is correct
42 Correct 31 ms 6952 KB Output is correct
43 Correct 39 ms 6408 KB Output is correct
44 Correct 40 ms 6864 KB Output is correct
45 Correct 30 ms 7256 KB Output is correct
46 Correct 59 ms 6988 KB Output is correct
47 Correct 26 ms 6508 KB Output is correct
48 Correct 35 ms 6596 KB Output is correct
49 Correct 28 ms 6452 KB Output is correct
50 Correct 207 ms 6724 KB Output is correct
51 Correct 217 ms 6948 KB Output is correct
52 Correct 204 ms 6572 KB Output is correct
53 Correct 216 ms 7016 KB Output is correct
54 Correct 203 ms 6468 KB Output is correct
55 Correct 224 ms 6992 KB Output is correct
56 Correct 199 ms 6368 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 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 22 ms 4020 KB Output is correct
10 Correct 5 ms 1356 KB Output is correct
11 Correct 13 ms 3780 KB Output is correct
12 Correct 15 ms 2604 KB Output is correct
13 Correct 17 ms 4108 KB Output is correct
14 Correct 11 ms 2892 KB Output is correct
15 Correct 3 ms 972 KB Output is correct
16 Correct 12 ms 2964 KB Output is correct
17 Correct 36 ms 5684 KB Output is correct
18 Correct 15 ms 3660 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 9 ms 1612 KB Output is correct
35 Correct 21 ms 4264 KB Output is correct
36 Correct 27 ms 4976 KB Output is correct
37 Correct 56 ms 4436 KB Output is correct
38 Correct 65 ms 4996 KB Output is correct
39 Correct 23 ms 4144 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 14 ms 2364 KB Output is correct
42 Correct 25 ms 4608 KB Output is correct
43 Correct 3 ms 716 KB Output is correct
44 Correct 17 ms 3024 KB Output is correct
45 Correct 21 ms 3536 KB Output is correct
46 Correct 27 ms 4816 KB Output is correct
47 Correct 9 ms 1864 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 60 ms 6388 KB Output is correct
50 Correct 31 ms 6952 KB Output is correct
51 Correct 39 ms 6408 KB Output is correct
52 Correct 40 ms 6864 KB Output is correct
53 Correct 30 ms 7256 KB Output is correct
54 Correct 59 ms 6988 KB Output is correct
55 Correct 26 ms 6508 KB Output is correct
56 Correct 35 ms 6596 KB Output is correct
57 Correct 28 ms 6452 KB Output is correct
58 Correct 207 ms 6724 KB Output is correct
59 Correct 217 ms 6948 KB Output is correct
60 Correct 204 ms 6572 KB Output is correct
61 Correct 216 ms 7016 KB Output is correct
62 Correct 203 ms 6468 KB Output is correct
63 Correct 224 ms 6992 KB Output is correct
64 Correct 199 ms 6368 KB Output is correct
65 Correct 0 ms 332 KB Output is correct
66 Incorrect 0 ms 332 KB Output isn't correct
67 Halted 0 ms 0 KB -