oj.uz

Submission #342875

# Submission time Handle Problem Language Result Execution time Memory
342875 2021-01-03T05:10:11 Z Rakhmand Chessboard (IZhO18_chessboard) C++14
70 / 100
 487 ms 3564 KB 
//
//  main.cpp
//  torelax
//
//  Created by Rakhman on 11/15/20.
//

#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>

#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define no_answer {cout << "NO"; exit(0);}
#define FOR(i, start, finish, k) for(llong i = start; i <= finish; i += k)

const long long mxn = 1e5 + 110;
const long long mnn = 1e3 + 2;
const long long mod = 1e9 + 7;
const long long inf = 1e18;
const long long OO = 1e9;

typedef long long llong;
typedef unsigned long long ullong;

using namespace std;

llong n, k;
llong ans = inf;

struct dot{
    llong left, up, right, down;
}b[mxn];

llong get_color(llong x, llong y, llong d){
    return (((x - 1) / d) + ((y - 1) / d)) % 2;
}

llong get(llong d){
    //left-corner is black
    llong blacks = d * d * (n / d) * (n / d / 2);
    if((n / d) % 2 == 1){
        blacks += d * d * (n / d / 2 + 1);
    }
    llong paint = 0;
    llong blacks1 = n * n - blacks;
    for(int i = 1; i <= k; i++){
        int x = b[i].left, y = b[i].up;
        if(get_color(x, y, d) == 0){
            blacks--;
        }else{
            paint++;
        }
    }
    //left-corner is white
    llong paint1 = 0;
    for(int i = 1; i <= k; i++){
        int x = b[i].left, y = b[i].up;
        if(get_color(x, y, d) == 1){
            blacks1--;
        }else{
            paint1++;
        }
    }
    return min(blacks1 + paint1, blacks + paint);
}

int main() {
    ios;
    cin >> n >> k;
    for(int i = 1; i <= k; i++){
        cin >> b[i].left >> b[i].up >> b[i].right >> b[i].down;
    }
    for(int i = 1; i <= sqrt(n); i++){
        if(n % i == 0){
            ans = min(ans, get(i));
            if(n / i != i && i != 1){
                ans = min(get(n / i), ans);
            }
        }
    }
    cout << ans;
}


/*
 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 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 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 26 ms 2284 KB Output is correct
2 Correct 7 ms 876 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 21 ms 1772 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 14 ms 1388 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 17 ms 1388 KB Output is correct
9 Correct 37 ms 3436 KB Output is correct
10 Correct 20 ms 1900 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 0 ms 364 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

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 0 ms 364 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 12 ms 1260 KB Output is correct
17 Correct 29 ms 2924 KB Output is correct
18 Correct 42 ms 3444 KB Output is correct
19 Correct 105 ms 3164 KB Output is correct
20 Correct 120 ms 3436 KB Output is correct
21 Correct 29 ms 2924 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 24 ms 1644 KB Output is correct
24 Correct 38 ms 3180 KB Output is correct
25 Correct 5 ms 620 KB Output is correct
26 Correct 24 ms 2156 KB Output is correct
27 Correct 33 ms 2412 KB Output is correct
28 Correct 39 ms 3308 KB Output is correct
29 Correct 12 ms 1388 KB Output is correct
30 Correct 2 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 2284 KB Output is correct
2 Correct 7 ms 876 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 21 ms 1772 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 14 ms 1388 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 17 ms 1388 KB Output is correct
9 Correct 37 ms 3436 KB Output is correct
10 Correct 20 ms 1900 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 0 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 12 ms 1260 KB Output is correct
27 Correct 29 ms 2924 KB Output is correct
28 Correct 42 ms 3444 KB Output is correct
29 Correct 105 ms 3164 KB Output is correct
30 Correct 120 ms 3436 KB Output is correct
31 Correct 29 ms 2924 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 24 ms 1644 KB Output is correct
34 Correct 38 ms 3180 KB Output is correct
35 Correct 5 ms 620 KB Output is correct
36 Correct 24 ms 2156 KB Output is correct
37 Correct 33 ms 2412 KB Output is correct
38 Correct 39 ms 3308 KB Output is correct
39 Correct 12 ms 1388 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 101 ms 2924 KB Output is correct
42 Correct 44 ms 3308 KB Output is correct
43 Correct 63 ms 2924 KB Output is correct
44 Correct 43 ms 3180 KB Output is correct
45 Correct 39 ms 3436 KB Output is correct
46 Correct 116 ms 3328 KB Output is correct
47 Correct 35 ms 3052 KB Output is correct
48 Correct 53 ms 3052 KB Output is correct
49 Correct 39 ms 2924 KB Output is correct
50 Correct 446 ms 3308 KB Output is correct
51 Correct 472 ms 3308 KB Output is correct
52 Correct 436 ms 3328 KB Output is correct
53 Correct 464 ms 3308 KB Output is correct
54 Correct 429 ms 3052 KB Output is correct
55 Correct 487 ms 3564 KB Output is correct
56 Correct 417 ms 3092 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 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 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 26 ms 2284 KB Output is correct
10 Correct 7 ms 876 KB Output is correct
11 Correct 16 ms 1516 KB Output is correct
12 Correct 21 ms 1772 KB Output is correct
13 Correct 23 ms 2028 KB Output is correct
14 Correct 14 ms 1388 KB Output is correct
15 Correct 4 ms 620 KB Output is correct
16 Correct 17 ms 1388 KB Output is correct
17 Correct 37 ms 3436 KB Output is correct
18 Correct 20 ms 1900 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 0 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 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 12 ms 1260 KB Output is correct
35 Correct 29 ms 2924 KB Output is correct
36 Correct 42 ms 3444 KB Output is correct
37 Correct 105 ms 3164 KB Output is correct
38 Correct 120 ms 3436 KB Output is correct
39 Correct 29 ms 2924 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 24 ms 1644 KB Output is correct
42 Correct 38 ms 3180 KB Output is correct
43 Correct 5 ms 620 KB Output is correct
44 Correct 24 ms 2156 KB Output is correct
45 Correct 33 ms 2412 KB Output is correct
46 Correct 39 ms 3308 KB Output is correct
47 Correct 12 ms 1388 KB Output is correct
48 Correct 2 ms 364 KB Output is correct
49 Correct 101 ms 2924 KB Output is correct
50 Correct 44 ms 3308 KB Output is correct
51 Correct 63 ms 2924 KB Output is correct
52 Correct 43 ms 3180 KB Output is correct
53 Correct 39 ms 3436 KB Output is correct
54 Correct 116 ms 3328 KB Output is correct
55 Correct 35 ms 3052 KB Output is correct
56 Correct 53 ms 3052 KB Output is correct
57 Correct 39 ms 2924 KB Output is correct
58 Correct 446 ms 3308 KB Output is correct
59 Correct 472 ms 3308 KB Output is correct
60 Correct 436 ms 3328 KB Output is correct
61 Correct 464 ms 3308 KB Output is correct
62 Correct 429 ms 3052 KB Output is correct
63 Correct 487 ms 3564 KB Output is correct
64 Correct 417 ms 3092 KB Output is correct
65 Correct 0 ms 364 KB Output is correct
66 Incorrect 0 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -