oj.uz

Submission #495097

# Submission time Handle Problem Language Result Execution time Memory
495097 2021-12-18T04:46:57 Z vinnipuh01 Chessboard (IZhO18_chessboard) C++17
70 / 100
 361 ms 5796 KB 
#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
#define int long long

using namespace std;

const long long oo = 1000000000000000000;

long long  sum, ans = 0, mx = 0, mn = 1000000000, num, pos, answer;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen ( "sum.in", "r", stdin )
*/

bool prime_number;
int n, m, x[ 100001 ], y[ 100001 ], xx[ 100001 ], yy[ 100001 ];


int f( int o ) {
	num = m * m;
	sum = o * o;
	mn = num / sum;
	ans = mn / 2;
	num = mn / 2;
	if ( mn % 2 )
		num ++;
	ans = ans * sum;
	num = num * sum;
	sum = mx = 0;
	for ( int i = 1; i <= n; i ++ ) {
		if ( ( ( x[ i ] / o ) + ( y[ i ] / o ) ) % 2 ) {
			sum ++;
			ans --;
		}
		else {
			num --;
			mx ++;
		}
	}
	return min( ans + mx, num + sum );
}

main () {
	cin >> m >> n;
	prime_number = 1;
	for ( int i = 2; i < m; i ++ ) {
		if ( m % i == 0 ) {
			prime_number = 0;
			break;
		}
	}
	for ( int i = 1; i <= n; i ++ ) {
		cin >> x[ i ] >> y[ i ] >> xx[ i ] >> yy[ i ];
		x[ i ] --;
		y[ i ] --;
		xx[ i ] --;
		yy[ i ] --;
	}
	answer = f( 1 );
	int sq = sqrt( m );
	for ( int i = 2; i <= sq; i ++ ) {
		if ( m % i == 0 ) {
			answer = min( answer, min( f( i ), f( m / i ) ) );
		}
	}
	cout << answer;
}

Compilation message

chessboard.cpp:74:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   74 | main () {
      | ^~~~

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 0 ms 204 KB Output is correct
4 Correct 1 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 79 ms 2240 KB Output is correct
2 Correct 20 ms 716 KB Output is correct
3 Correct 41 ms 1484 KB Output is correct
4 Correct 56 ms 1608 KB Output is correct
5 Correct 61 ms 1880 KB Output is correct
6 Correct 39 ms 1312 KB Output is correct
7 Correct 7 ms 460 KB Output is correct
8 Correct 40 ms 1376 KB Output is correct
9 Correct 103 ms 3044 KB Output is correct
10 Correct 57 ms 1836 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 332 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 332 KB Output is correct
16 Correct 37 ms 1028 KB Output is correct
17 Correct 79 ms 2884 KB Output is correct
18 Correct 84 ms 3336 KB Output is correct
19 Correct 121 ms 3048 KB Output is correct
20 Correct 125 ms 3404 KB Output is correct
21 Correct 78 ms 2740 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 44 ms 1612 KB Output is correct
24 Correct 102 ms 3108 KB Output is correct
25 Correct 9 ms 520 KB Output is correct
26 Correct 61 ms 2020 KB Output is correct
27 Correct 73 ms 2316 KB Output is correct
28 Correct 92 ms 3180 KB Output is correct
29 Correct 33 ms 1252 KB Output is correct
30 Correct 4 ms 332 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 2240 KB Output is correct
2 Correct 20 ms 716 KB Output is correct
3 Correct 41 ms 1484 KB Output is correct
4 Correct 56 ms 1608 KB Output is correct
5 Correct 61 ms 1880 KB Output is correct
6 Correct 39 ms 1312 KB Output is correct
7 Correct 7 ms 460 KB Output is correct
8 Correct 40 ms 1376 KB Output is correct
9 Correct 103 ms 3044 KB Output is correct
10 Correct 57 ms 1836 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 37 ms 1028 KB Output is correct
27 Correct 79 ms 2884 KB Output is correct
28 Correct 84 ms 3336 KB Output is correct
29 Correct 121 ms 3048 KB Output is correct
30 Correct 125 ms 3404 KB Output is correct
31 Correct 78 ms 2740 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 44 ms 1612 KB Output is correct
34 Correct 102 ms 3108 KB Output is correct
35 Correct 9 ms 520 KB Output is correct
36 Correct 61 ms 2020 KB Output is correct
37 Correct 73 ms 2316 KB Output is correct
38 Correct 92 ms 3180 KB Output is correct
39 Correct 33 ms 1252 KB Output is correct
40 Correct 4 ms 332 KB Output is correct
41 Correct 160 ms 2868 KB Output is correct
42 Correct 122 ms 5404 KB Output is correct
43 Correct 109 ms 4788 KB Output is correct
44 Correct 110 ms 5296 KB Output is correct
45 Correct 125 ms 5604 KB Output is correct
46 Correct 145 ms 5416 KB Output is correct
47 Correct 101 ms 4940 KB Output is correct
48 Correct 128 ms 5024 KB Output is correct
49 Correct 110 ms 4832 KB Output is correct
50 Correct 303 ms 5296 KB Output is correct
51 Correct 323 ms 5632 KB Output is correct
52 Correct 339 ms 5264 KB Output is correct
53 Correct 329 ms 5528 KB Output is correct
54 Correct 295 ms 5192 KB Output is correct
55 Correct 361 ms 5796 KB Output is correct
56 Correct 276 ms 5048 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 0 ms 204 KB Output is correct
4 Correct 1 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 79 ms 2240 KB Output is correct
10 Correct 20 ms 716 KB Output is correct
11 Correct 41 ms 1484 KB Output is correct
12 Correct 56 ms 1608 KB Output is correct
13 Correct 61 ms 1880 KB Output is correct
14 Correct 39 ms 1312 KB Output is correct
15 Correct 7 ms 460 KB Output is correct
16 Correct 40 ms 1376 KB Output is correct
17 Correct 103 ms 3044 KB Output is correct
18 Correct 57 ms 1836 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 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 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 37 ms 1028 KB Output is correct
35 Correct 79 ms 2884 KB Output is correct
36 Correct 84 ms 3336 KB Output is correct
37 Correct 121 ms 3048 KB Output is correct
38 Correct 125 ms 3404 KB Output is correct
39 Correct 78 ms 2740 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 44 ms 1612 KB Output is correct
42 Correct 102 ms 3108 KB Output is correct
43 Correct 9 ms 520 KB Output is correct
44 Correct 61 ms 2020 KB Output is correct
45 Correct 73 ms 2316 KB Output is correct
46 Correct 92 ms 3180 KB Output is correct
47 Correct 33 ms 1252 KB Output is correct
48 Correct 4 ms 332 KB Output is correct
49 Correct 160 ms 2868 KB Output is correct
50 Correct 122 ms 5404 KB Output is correct
51 Correct 109 ms 4788 KB Output is correct
52 Correct 110 ms 5296 KB Output is correct
53 Correct 125 ms 5604 KB Output is correct
54 Correct 145 ms 5416 KB Output is correct
55 Correct 101 ms 4940 KB Output is correct
56 Correct 128 ms 5024 KB Output is correct
57 Correct 110 ms 4832 KB Output is correct
58 Correct 303 ms 5296 KB Output is correct
59 Correct 323 ms 5632 KB Output is correct
60 Correct 339 ms 5264 KB Output is correct
61 Correct 329 ms 5528 KB Output is correct
62 Correct 295 ms 5192 KB Output is correct
63 Correct 361 ms 5796 KB Output is correct
64 Correct 276 ms 5048 KB Output is correct
65 Correct 1 ms 208 KB Output is correct
66 Incorrect 1 ms 208 KB Output isn't correct
67 Halted 0 ms 0 KB -