Submission #495215

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
495215	2021-12-18T06:42:09 Z	vinnipuh01	Chessboard (IZhO18_chessboard)	C++17	70 / 100	2000 ms	3556 KB

chessboard

#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 ++ ) {
		for ( int j = x[ i ]; j <= xx[ i ]; j ++ ) {
			for ( int k = y[ i ]; k <= yy[ i ]; k ++ ) {
				if ( ( ( j / o ) + ( k / 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:79:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   79 | 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	1 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	300 KB	Output is correct
7	Correct	1 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	77 ms	2360 KB	Output is correct
2	Correct	19 ms	1020 KB	Output is correct
3	Correct	54 ms	1712 KB	Output is correct
4	Correct	44 ms	1852 KB	Output is correct
5	Correct	81 ms	2192 KB	Output is correct
6	Correct	43 ms	1504 KB	Output is correct
7	Correct	8 ms	572 KB	Output is correct
8	Correct	44 ms	1508 KB	Output is correct
9	Correct	106 ms	3440 KB	Output is correct
10	Correct	84 ms	2024 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	0 ms	204 KB	Output is correct
3	Correct	2 ms	204 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	2 ms	308 KB	Output is correct
9	Correct	1 ms	332 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	304 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	0 ms	204 KB	Output is correct
3	Correct	2 ms	204 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	2 ms	308 KB	Output is correct
9	Correct	1 ms	332 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	304 KB	Output is correct
16	Correct	27 ms	1328 KB	Output is correct
17	Correct	146 ms	3100 KB	Output is correct
18	Correct	112 ms	3556 KB	Output is correct
19	Correct	130 ms	3364 KB	Output is correct
20	Correct	161 ms	3524 KB	Output is correct
21	Correct	85 ms	2940 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	50 ms	1752 KB	Output is correct
24	Correct	135 ms	3436 KB	Output is correct
25	Correct	11 ms	696 KB	Output is correct
26	Correct	54 ms	2056 KB	Output is correct
27	Correct	74 ms	2396 KB	Output is correct
28	Correct	113 ms	3188 KB	Output is correct
29	Correct	47 ms	1328 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	77 ms	2360 KB	Output is correct
2	Correct	19 ms	1020 KB	Output is correct
3	Correct	54 ms	1712 KB	Output is correct
4	Correct	44 ms	1852 KB	Output is correct
5	Correct	81 ms	2192 KB	Output is correct
6	Correct	43 ms	1504 KB	Output is correct
7	Correct	8 ms	572 KB	Output is correct
8	Correct	44 ms	1508 KB	Output is correct
9	Correct	106 ms	3440 KB	Output is correct
10	Correct	84 ms	2024 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	2 ms	204 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	300 KB	Output is correct
16	Correct	1 ms	300 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	2 ms	308 KB	Output is correct
19	Correct	1 ms	332 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	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	2 ms	304 KB	Output is correct
26	Correct	27 ms	1328 KB	Output is correct
27	Correct	146 ms	3100 KB	Output is correct
28	Correct	112 ms	3556 KB	Output is correct
29	Correct	130 ms	3364 KB	Output is correct
30	Correct	161 ms	3524 KB	Output is correct
31	Correct	85 ms	2940 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	50 ms	1752 KB	Output is correct
34	Correct	135 ms	3436 KB	Output is correct
35	Correct	11 ms	696 KB	Output is correct
36	Correct	54 ms	2056 KB	Output is correct
37	Correct	74 ms	2396 KB	Output is correct
38	Correct	113 ms	3188 KB	Output is correct
39	Correct	47 ms	1328 KB	Output is correct
40	Correct	4 ms	332 KB	Output is correct
41	Correct	159 ms	2788 KB	Output is correct
42	Correct	121 ms	3172 KB	Output is correct
43	Correct	133 ms	2824 KB	Output is correct
44	Correct	107 ms	3060 KB	Output is correct
45	Correct	112 ms	3344 KB	Output is correct
46	Correct	140 ms	3084 KB	Output is correct
47	Correct	92 ms	2928 KB	Output is correct
48	Correct	109 ms	2908 KB	Output is correct
49	Correct	95 ms	2800 KB	Output is correct
50	Correct	320 ms	3044 KB	Output is correct
51	Correct	330 ms	3324 KB	Output is correct
52	Correct	329 ms	3008 KB	Output is correct
53	Correct	340 ms	3268 KB	Output is correct
54	Correct	351 ms	3060 KB	Output is correct
55	Correct	344 ms	3472 KB	Output is correct
56	Correct	344 ms	2980 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	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	300 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	77 ms	2360 KB	Output is correct
10	Correct	19 ms	1020 KB	Output is correct
11	Correct	54 ms	1712 KB	Output is correct
12	Correct	44 ms	1852 KB	Output is correct
13	Correct	81 ms	2192 KB	Output is correct
14	Correct	43 ms	1504 KB	Output is correct
15	Correct	8 ms	572 KB	Output is correct
16	Correct	44 ms	1508 KB	Output is correct
17	Correct	106 ms	3440 KB	Output is correct
18	Correct	84 ms	2024 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	2 ms	204 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	300 KB	Output is correct
24	Correct	1 ms	300 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	2 ms	308 KB	Output is correct
27	Correct	1 ms	332 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	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	2 ms	304 KB	Output is correct
34	Correct	27 ms	1328 KB	Output is correct
35	Correct	146 ms	3100 KB	Output is correct
36	Correct	112 ms	3556 KB	Output is correct
37	Correct	130 ms	3364 KB	Output is correct
38	Correct	161 ms	3524 KB	Output is correct
39	Correct	85 ms	2940 KB	Output is correct
40	Correct	1 ms	332 KB	Output is correct
41	Correct	50 ms	1752 KB	Output is correct
42	Correct	135 ms	3436 KB	Output is correct
43	Correct	11 ms	696 KB	Output is correct
44	Correct	54 ms	2056 KB	Output is correct
45	Correct	74 ms	2396 KB	Output is correct
46	Correct	113 ms	3188 KB	Output is correct
47	Correct	47 ms	1328 KB	Output is correct
48	Correct	4 ms	332 KB	Output is correct
49	Correct	159 ms	2788 KB	Output is correct
50	Correct	121 ms	3172 KB	Output is correct
51	Correct	133 ms	2824 KB	Output is correct
52	Correct	107 ms	3060 KB	Output is correct
53	Correct	112 ms	3344 KB	Output is correct
54	Correct	140 ms	3084 KB	Output is correct
55	Correct	92 ms	2928 KB	Output is correct
56	Correct	109 ms	2908 KB	Output is correct
57	Correct	95 ms	2800 KB	Output is correct
58	Correct	320 ms	3044 KB	Output is correct
59	Correct	330 ms	3324 KB	Output is correct
60	Correct	329 ms	3008 KB	Output is correct
61	Correct	340 ms	3268 KB	Output is correct
62	Correct	351 ms	3060 KB	Output is correct
63	Correct	344 ms	3472 KB	Output is correct
64	Correct	344 ms	2980 KB	Output is correct
65	Correct	0 ms	204 KB	Output is correct
66	Correct	0 ms	204 KB	Output is correct
67	Execution timed out	2084 ms	3144 KB	Time limit exceeded
68	Halted	0 ms	0 KB	-