oj.uz

답안 #673545

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
673545 2022-12-21T03:15:48 Z Cutebol Chessboard (IZhO18_chessboard) C++17
70 / 100
 405 ms 5880 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define Scaramouche ios_base::sync_with_stdio(0) ; cin.tie(0) ; cout.tie(0);
#define int long long
#define itn int
#define endl "\n"
#define ff first
#define ss second
   
const int N = 2e5 + 5 ;
const int mod = 1e9 + 7 ;
const int inf = 1e12 ;

int n , k , m , sum , ans = inf ;
int x[N] , y[N] ;
vector <pair <int,int>> vec ;

void chk ( int a ){
	
	int cur = ( (n / a) * (n / a) + 1 ) / 2 * a * a , cnt = 0 ;
	for ( auto i : vec ){
		int x = i.ff/a , y = i.ss/a ;
		if ( (x + y) % 2 == 0 ) cur -- ;
		else cnt ++ ;
	}
	ans = min ( ans , cur + cnt ) ;
	cur = ( (n / a) * (n / a) ) / 2 * a * a , cnt = 0 ;
	for ( auto i : vec ){
		int x = i.ff/a , y = i.ss/a ;
		if ( (x + y) % 2 ) cur -- ;
		else cnt ++ ;
	}
	ans = min ( ans , cnt + cur ) ;
}

void solve(){
	
	cin >> n >> m ;
	for ( int i = 0 ; i < m ; i ++ ){
		cin >> x[i] >> y[i] >> x[i] >> y[i] ;
		vec.push_back({--x[i],--y[i]}) ;
	}
	chk(1) ;
	for ( int i = 2 ; i*i <= n ; i ++ ){
		if ( n % i == 0 ){
			chk(n/i) ;
			chk(i) ;
		}
	}
	cout << ans ;
}
 
signed main(){
//  fopn("blocks") ;
    Scaramouche ;
    int t = 1 ;
//    	cin >> t ;
    while ( t -- ) solve() ; 
}

Compilation message

chessboard.cpp: In function 'void fopn(std::string)':
chessboard.cpp:5:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chessboard.cpp:5:72: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 3784 KB Output is correct
2 Correct 6 ms 1496 KB Output is correct
3 Correct 14 ms 2900 KB Output is correct
4 Correct 15 ms 2764 KB Output is correct
5 Correct 21 ms 3496 KB Output is correct
6 Correct 13 ms 2708 KB Output is correct
7 Correct 3 ms 848 KB Output is correct
8 Correct 13 ms 2772 KB Output is correct
9 Correct 31 ms 5248 KB Output is correct
10 Correct 18 ms 3164 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 10 ms 1748 KB Output is correct
17 Correct 25 ms 4816 KB Output is correct
18 Correct 33 ms 5096 KB Output is correct
19 Correct 88 ms 4804 KB Output is correct
20 Correct 101 ms 5092 KB Output is correct
21 Correct 23 ms 4808 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 19 ms 2644 KB Output is correct
24 Correct 33 ms 4812 KB Output is correct
25 Correct 5 ms 972 KB Output is correct
26 Correct 19 ms 3076 KB Output is correct
27 Correct 27 ms 4560 KB Output is correct
28 Correct 32 ms 4936 KB Output is correct
29 Correct 11 ms 2492 KB Output is correct
30 Correct 1 ms 468 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 3784 KB Output is correct
2 Correct 6 ms 1496 KB Output is correct
3 Correct 14 ms 2900 KB Output is correct
4 Correct 15 ms 2764 KB Output is correct
5 Correct 21 ms 3496 KB Output is correct
6 Correct 13 ms 2708 KB Output is correct
7 Correct 3 ms 848 KB Output is correct
8 Correct 13 ms 2772 KB Output is correct
9 Correct 31 ms 5248 KB Output is correct
10 Correct 18 ms 3164 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 10 ms 1748 KB Output is correct
27 Correct 25 ms 4816 KB Output is correct
28 Correct 33 ms 5096 KB Output is correct
29 Correct 88 ms 4804 KB Output is correct
30 Correct 101 ms 5092 KB Output is correct
31 Correct 23 ms 4808 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 19 ms 2644 KB Output is correct
34 Correct 33 ms 4812 KB Output is correct
35 Correct 5 ms 972 KB Output is correct
36 Correct 19 ms 3076 KB Output is correct
37 Correct 27 ms 4560 KB Output is correct
38 Correct 32 ms 4936 KB Output is correct
39 Correct 11 ms 2492 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 83 ms 5240 KB Output is correct
42 Correct 37 ms 5572 KB Output is correct
43 Correct 56 ms 5324 KB Output is correct
44 Correct 36 ms 5388 KB Output is correct
45 Correct 35 ms 5824 KB Output is correct
46 Correct 92 ms 5568 KB Output is correct
47 Correct 28 ms 5224 KB Output is correct
48 Correct 45 ms 5324 KB Output is correct
49 Correct 34 ms 5304 KB Output is correct
50 Correct 373 ms 5444 KB Output is correct
51 Correct 388 ms 5876 KB Output is correct
52 Correct 364 ms 5416 KB Output is correct
53 Correct 390 ms 5744 KB Output is correct
54 Correct 357 ms 5348 KB Output is correct
55 Correct 405 ms 5880 KB Output is correct
56 Correct 344 ms 5320 KB Output is correct

Subtask #6
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 21 ms 3784 KB Output is correct
10 Correct 6 ms 1496 KB Output is correct
11 Correct 14 ms 2900 KB Output is correct
12 Correct 15 ms 2764 KB Output is correct
13 Correct 21 ms 3496 KB Output is correct
14 Correct 13 ms 2708 KB Output is correct
15 Correct 3 ms 848 KB Output is correct
16 Correct 13 ms 2772 KB Output is correct
17 Correct 31 ms 5248 KB Output is correct
18 Correct 18 ms 3164 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 10 ms 1748 KB Output is correct
35 Correct 25 ms 4816 KB Output is correct
36 Correct 33 ms 5096 KB Output is correct
37 Correct 88 ms 4804 KB Output is correct
38 Correct 101 ms 5092 KB Output is correct
39 Correct 23 ms 4808 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 19 ms 2644 KB Output is correct
42 Correct 33 ms 4812 KB Output is correct
43 Correct 5 ms 972 KB Output is correct
44 Correct 19 ms 3076 KB Output is correct
45 Correct 27 ms 4560 KB Output is correct
46 Correct 32 ms 4936 KB Output is correct
47 Correct 11 ms 2492 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 83 ms 5240 KB Output is correct
50 Correct 37 ms 5572 KB Output is correct
51 Correct 56 ms 5324 KB Output is correct
52 Correct 36 ms 5388 KB Output is correct
53 Correct 35 ms 5824 KB Output is correct
54 Correct 92 ms 5568 KB Output is correct
55 Correct 28 ms 5224 KB Output is correct
56 Correct 45 ms 5324 KB Output is correct
57 Correct 34 ms 5304 KB Output is correct
58 Correct 373 ms 5444 KB Output is correct
59 Correct 388 ms 5876 KB Output is correct
60 Correct 364 ms 5416 KB Output is correct
61 Correct 390 ms 5744 KB Output is correct
62 Correct 357 ms 5348 KB Output is correct
63 Correct 405 ms 5880 KB Output is correct
64 Correct 344 ms 5320 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Incorrect 1 ms 212 KB Output isn't correct
67 Halted 0 ms 0 KB -