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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#166571#7178. Bishopsucup-team1325#AC ✓20ms5352kbC++171.6kb2023-09-06 15:07:402023-09-06 15:07:40

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你现在查看的是最新测评结果

  • [2023-09-06 15:07:40]
  • 评测
  • 测评结果：AC
  • 用时：20ms
  • 内存：5352kb
查看
  • [2023-09-06 15:07:40]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

typedef long long ll; typedef unsigned long long ull;
const int inf = 1e9; const ll llnf = 4e18;

template< class Tp > void chkmax( Tp &x , Tp y ) { x = max( x , y ); }
template< class Tp > void chkmin( Tp &x , Tp y ) { x = min( x , y ); }

void solve( ) {
	int n , m; cin >> n >> m;

	vector< pair< int , int > > ans; bool swp = false; if( n > m ) swp = true , swap( n , m );

	if( n == 1 ) { for( int j = 1; j <= m; j ++ ) ans.emplace_back( 1 , j ); }
	else if( n == m ) { for( int i = 1; i <= n - 1; i ++ ) ans.emplace_back( i , 1 ) , ans.emplace_back( i , n ); }
	else if( !( n & 1 ) && !( m & 1 ) ) {
		for( int i = 1; i <= n; i ++ ) ans.emplace_back( i , 1 ) , ans.emplace_back( i , m );
		for( int j = n / 2 + 2; j <= m - n / 2 - 2; j += 2 ) ans.emplace_back( n / 2 , j ) , ans.emplace_back( n / 2 + 1 , j );
	}
	else if( !( n & 1 ) && ( m & 1 ) ) {
		for( int i = 1; i <= n; i ++ ) ans.emplace_back( i , 1 ) , ans.emplace_back( i , m );
		for( int j = n / 2 + 2; j <= m - n / 2 - 1; j += 2 ) ans.emplace_back( n / 2 , j ) , ans.emplace_back( n / 2 + 1 , j );
	}
	else {
		for( int i = 1; i <= n; i ++ ) ans.emplace_back( i , 1 ) , ans.emplace_back( i , m );
		for( int j = ( n + 1 ) / 2 + 1; j <= m - ( n + 1 ) / 2; j ++ ) ans.emplace_back( ( n + 1 ) / 2 , j );
	}

	cout << ( int ) ans.size( ) << "\n"; for( auto [ x , y ] : ans ) { if( !swp ) cout << x << " " << y << "\n"; else cout << y << " " << x << "\n"; }
}

int main( ) {
	ios::sync_with_stdio( 0 ), cin.tie( 0 ), cout.tie( 0 );
	int T = 1; while( T -- ) solve( ); return 0;
}
Source code, Language: C++17

这程序好像有点Bug，我给组数据试试？

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3552kb

input:

2 5

output:

6
1 1
1 5
2 1
2 5
1 3
2 3

result:

ok n: 2, m: 5, bishops: 6

Test #2:

score: 0
Accepted
time: 1ms
memory: 3616kb

input:

5 5

output:

8
1 1
1 5
2 1
2 5
3 1
3 5
4 1
4 5

result:

ok n: 5, m: 5, bishops: 8

Test #3:

score: 0
Accepted
time: 18ms
memory: 5116kb

input:

100000 100000

output:

199998
1 1
1 100000
2 1
2 100000
3 1
3 100000
4 1
4 100000
5 1
5 100000
6 1
6 100000
7 1
7 100000
8 1
8 100000
9 1
9 100000
10 1
10 100000
11 1
11 100000
12 1
12 100000
13 1
13 100000
14 1
14 100000
15 1
15 100000
16 1
16 100000
17 1
17 100000
18 1
18 100000
19 1
19 100000
20 1
20 100000
21 1
21 100...

result:

ok n: 100000, m: 100000, bishops: 199998

Test #4:

score: 0
Accepted
time: 14ms
memory: 5232kb

input:

100000 99999

output:

199998
1 1
100000 1
1 2
100000 2
1 3
100000 3
1 4
100000 4
1 5
100000 5
1 6
100000 6
1 7
100000 7
1 8
100000 8
1 9
100000 9
1 10
100000 10
1 11
100000 11
1 12
100000 12
1 13
100000 13
1 14
100000 14
1 15
100000 15
1 16
100000 16
1 17
100000 17
1 18
100000 18
1 19
100000 19
1 20
100000 20
1 21
100000...

result:

ok n: 100000, m: 99999, bishops: 199998

Test #5:

score: 0
Accepted
time: 17ms
memory: 5352kb

input:

100000 50000

output:

149998
1 1
100000 1
1 2
100000 2
1 3
100000 3
1 4
100000 4
1 5
100000 5
1 6
100000 6
1 7
100000 7
1 8
100000 8
1 9
100000 9
1 10
100000 10
1 11
100000 11
1 12
100000 12
1 13
100000 13
1 14
100000 14
1 15
100000 15
1 16
100000 16
1 17
100000 17
1 18
100000 18
1 19
100000 19
1 20
100000 20
1 21
100000...

result:

ok n: 100000, m: 50000, bishops: 149998

Test #6:

score: 0
Accepted
time: 13ms
memory: 4284kb

input:

1 100000

output:

100000
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
1 16
1 17
1 18
1 19
1 20
1 21
1 22
1 23
1 24
1 25
1 26
1 27
1 28
1 29
1 30
1 31
1 32
1 33
1 34
1 35
1 36
1 37
1 38
1 39
1 40
1 41
1 42
1 43
1 44
1 45
1 46
1 47
1 48
1 49
1 50
1 51
1 52
1 53
1 54
1 55
1 56
1 57
1 58
1 59
1 60
1 ...

result:

ok n: 1, m: 100000, bishops: 100000

Test #7:

score: 0
Accepted
time: 9ms
memory: 5180kb

input:

34535 99889

output:

134423
1 1
1 99889
2 1
2 99889
3 1
3 99889
4 1
4 99889
5 1
5 99889
6 1
6 99889
7 1
7 99889
8 1
8 99889
9 1
9 99889
10 1
10 99889
11 1
11 99889
12 1
12 99889
13 1
13 99889
14 1
14 99889
15 1
15 99889
16 1
16 99889
17 1
17 99889
18 1
18 99889
19 1
19 99889
20 1
20 99889
21 1
21 99889
22 1
22 99889
23 ...

result:

ok n: 34535, m: 99889, bishops: 134423

Test #8:

score: 0
Accepted
time: 10ms
memory: 4220kb

input:

12231 97889

output:

110119
1 1
1 97889
2 1
2 97889
3 1
3 97889
4 1
4 97889
5 1
5 97889
6 1
6 97889
7 1
7 97889
8 1
8 97889
9 1
9 97889
10 1
10 97889
11 1
11 97889
12 1
12 97889
13 1
13 97889
14 1
14 97889
15 1
15 97889
16 1
16 97889
17 1
17 97889
18 1
18 97889
19 1
19 97889
20 1
20 97889
21 1
21 97889
22 1
22 97889
23 ...

result:

ok n: 12231, m: 97889, bishops: 110119

Test #9:

score: 0
Accepted
time: 6ms
memory: 4216kb

input:

10000 100000

output:

109998
1 1
1 100000
2 1
2 100000
3 1
3 100000
4 1
4 100000
5 1
5 100000
6 1
6 100000
7 1
7 100000
8 1
8 100000
9 1
9 100000
10 1
10 100000
11 1
11 100000
12 1
12 100000
13 1
13 100000
14 1
14 100000
15 1
15 100000
16 1
16 100000
17 1
17 100000
18 1
18 100000
19 1
19 100000
20 1
20 100000
21 1
21 100...

result:

ok n: 10000, m: 100000, bishops: 109998

Test #10:

score: 0
Accepted
time: 11ms
memory: 4220kb

input:

13 99999

output:

100011
1 1
1 99999
2 1
2 99999
3 1
3 99999
4 1
4 99999
5 1
5 99999
6 1
6 99999
7 1
7 99999
8 1
8 99999
9 1
9 99999
10 1
10 99999
11 1
11 99999
12 1
12 99999
13 1
13 99999
7 8
7 9
7 10
7 11
7 12
7 13
7 14
7 15
7 16
7 17
7 18
7 19
7 20
7 21
7 22
7 23
7 24
7 25
7 26
7 27
7 28
7 29
7 30
7 31
7 32
7 33
7...

result:

ok n: 13, m: 99999, bishops: 100011

Test #11:

score: 0
Accepted
time: 4ms
memory: 4124kb

input:

21 99999

output:

100019
1 1
1 99999
2 1
2 99999
3 1
3 99999
4 1
4 99999
5 1
5 99999
6 1
6 99999
7 1
7 99999
8 1
8 99999
9 1
9 99999
10 1
10 99999
11 1
11 99999
12 1
12 99999
13 1
13 99999
14 1
14 99999
15 1
15 99999
16 1
16 99999
17 1
17 99999
18 1
18 99999
19 1
19 99999
20 1
20 99999
21 1
21 99999
11 12
11 13
11 14...

result:

ok n: 21, m: 99999, bishops: 100019

Test #12:

score: 0
Accepted
time: 15ms
memory: 5212kb

input:

49999 100000

output:

149998
1 1
1 100000
2 1
2 100000
3 1
3 100000
4 1
4 100000
5 1
5 100000
6 1
6 100000
7 1
7 100000
8 1
8 100000
9 1
9 100000
10 1
10 100000
11 1
11 100000
12 1
12 100000
13 1
13 100000
14 1
14 100000
15 1
15 100000
16 1
16 100000
17 1
17 100000
18 1
18 100000
19 1
19 100000
20 1
20 100000
21 1
21 100...

result:

ok n: 49999, m: 100000, bishops: 149998

Test #13:

score: 0
Accepted
time: 10ms
memory: 5168kb

input:

33333 99999

output:

133331
1 1
1 99999
2 1
2 99999
3 1
3 99999
4 1
4 99999
5 1
5 99999
6 1
6 99999
7 1
7 99999
8 1
8 99999
9 1
9 99999
10 1
10 99999
11 1
11 99999
12 1
12 99999
13 1
13 99999
14 1
14 99999
15 1
15 99999
16 1
16 99999
17 1
17 99999
18 1
18 99999
19 1
19 99999
20 1
20 99999
21 1
21 99999
22 1
22 99999
23 ...

result:

ok n: 33333, m: 99999, bishops: 133331

Test #14:

score: 0
Accepted
time: 6ms
memory: 4124kb

input:

23342 98876

output:

122216
1 1
1 98876
2 1
2 98876
3 1
3 98876
4 1
4 98876
5 1
5 98876
6 1
6 98876
7 1
7 98876
8 1
8 98876
9 1
9 98876
10 1
10 98876
11 1
11 98876
12 1
12 98876
13 1
13 98876
14 1
14 98876
15 1
15 98876
16 1
16 98876
17 1
17 98876
18 1
18 98876
19 1
19 98876
20 1
20 98876
21 1
21 98876
22 1
22 98876
23 ...

result:

ok n: 23342, m: 98876, bishops: 122216

Test #15:

score: 0
Accepted
time: 17ms
memory: 5168kb

input:

56713 91234

output:

147946
1 1
1 91234
2 1
2 91234
3 1
3 91234
4 1
4 91234
5 1
5 91234
6 1
6 91234
7 1
7 91234
8 1
8 91234
9 1
9 91234
10 1
10 91234
11 1
11 91234
12 1
12 91234
13 1
13 91234
14 1
14 91234
15 1
15 91234
16 1
16 91234
17 1
17 91234
18 1
18 91234
19 1
19 91234
20 1
20 91234
21 1
21 91234
22 1
22 91234
23 ...

result:

ok n: 56713, m: 91234, bishops: 147946

Test #16:

score: 0
Accepted
time: 15ms
memory: 5168kb

input:

99995 99995

output:

199988
1 1
1 99995
2 1
2 99995
3 1
3 99995
4 1
4 99995
5 1
5 99995
6 1
6 99995
7 1
7 99995
8 1
8 99995
9 1
9 99995
10 1
10 99995
11 1
11 99995
12 1
12 99995
13 1
13 99995
14 1
14 99995
15 1
15 99995
16 1
16 99995
17 1
17 99995
18 1
18 99995
19 1
19 99995
20 1
20 99995
21 1
21 99995
22 1
22 99995
23 ...

result:

ok n: 99995, m: 99995, bishops: 199988

Test #17:

score: 0
Accepted
time: 8ms
memory: 4124kb

input:

12345 54321

output:

66665
1 1
1 54321
2 1
2 54321
3 1
3 54321
4 1
4 54321
5 1
5 54321
6 1
6 54321
7 1
7 54321
8 1
8 54321
9 1
9 54321
10 1
10 54321
11 1
11 54321
12 1
12 54321
13 1
13 54321
14 1
14 54321
15 1
15 54321
16 1
16 54321
17 1
17 54321
18 1
18 54321
19 1
19 54321
20 1
20 54321
21 1
21 54321
22 1
22 54321
23 1...

result:

ok n: 12345, m: 54321, bishops: 66665

Test #18:

score: 0
Accepted
time: 20ms
memory: 5180kb

input:

90000 92000

output:

181998
1 1
1 92000
2 1
2 92000
3 1
3 92000
4 1
4 92000
5 1
5 92000
6 1
6 92000
7 1
7 92000
8 1
8 92000
9 1
9 92000
10 1
10 92000
11 1
11 92000
12 1
12 92000
13 1
13 92000
14 1
14 92000
15 1
15 92000
16 1
16 92000
17 1
17 92000
18 1
18 92000
19 1
19 92000
20 1
20 92000
21 1
21 92000
22 1
22 92000
23 ...

result:

ok n: 90000, m: 92000, bishops: 181998

Test #19:

score: 0
Accepted
time: 6ms
memory: 4224kb

input:

10000 70000

output:

79998
1 1
1 70000
2 1
2 70000
3 1
3 70000
4 1
4 70000
5 1
5 70000
6 1
6 70000
7 1
7 70000
8 1
8 70000
9 1
9 70000
10 1
10 70000
11 1
11 70000
12 1
12 70000
13 1
13 70000
14 1
14 70000
15 1
15 70000
16 1
16 70000
17 1
17 70000
18 1
18 70000
19 1
19 70000
20 1
20 70000
21 1
21 70000
22 1
22 70000
23 1...

result:

ok n: 10000, m: 70000, bishops: 79998

Test #20:

score: 0
Accepted
time: 7ms
memory: 4324kb

input:

10000 70001

output:

80000
1 1
1 70001
2 1
2 70001
3 1
3 70001
4 1
4 70001
5 1
5 70001
6 1
6 70001
7 1
7 70001
8 1
8 70001
9 1
9 70001
10 1
10 70001
11 1
11 70001
12 1
12 70001
13 1
13 70001
14 1
14 70001
15 1
15 70001
16 1
16 70001
17 1
17 70001
18 1
18 70001
19 1
19 70001
20 1
20 70001
21 1
21 70001
22 1
22 70001
23 1...

result:

ok n: 10000, m: 70001, bishops: 80000

Test #21:

score: 0
Accepted
time: 6ms
memory: 4228kb

input:

10000 80000

output:

89998
1 1
1 80000
2 1
2 80000
3 1
3 80000
4 1
4 80000
5 1
5 80000
6 1
6 80000
7 1
7 80000
8 1
8 80000
9 1
9 80000
10 1
10 80000
11 1
11 80000
12 1
12 80000
13 1
13 80000
14 1
14 80000
15 1
15 80000
16 1
16 80000
17 1
17 80000
18 1
18 80000
19 1
19 80000
20 1
20 80000
21 1
21 80000
22 1
22 80000
23 1...

result:

ok n: 10000, m: 80000, bishops: 89998

Test #22:

score: 0
Accepted
time: 11ms
memory: 4128kb

input:

10000 80001

output:

90000
1 1
1 80001
2 1
2 80001
3 1
3 80001
4 1
4 80001
5 1
5 80001
6 1
6 80001
7 1
7 80001
8 1
8 80001
9 1
9 80001
10 1
10 80001
11 1
11 80001
12 1
12 80001
13 1
13 80001
14 1
14 80001
15 1
15 80001
16 1
16 80001
17 1
17 80001
18 1
18 80001
19 1
19 80001
20 1
20 80001
21 1
21 80001
22 1
22 80001
23 1...

result:

ok n: 10000, m: 80001, bishops: 90000

Test #23:

score: 0
Accepted
time: 12ms
memory: 4304kb

input:

10000 80002

output:

90000
1 1
1 80002
2 1
2 80002
3 1
3 80002
4 1
4 80002
5 1
5 80002
6 1
6 80002
7 1
7 80002
8 1
8 80002
9 1
9 80002
10 1
10 80002
11 1
11 80002
12 1
12 80002
13 1
13 80002
14 1
14 80002
15 1
15 80002
16 1
16 80002
17 1
17 80002
18 1
18 80002
19 1
19 80002
20 1
20 80002
21 1
21 80002
22 1
22 80002
23 1...

result:

ok n: 10000, m: 80002, bishops: 90000

Test #24:

score: 0
Accepted
time: 11ms
memory: 4072kb

input:

10000 79999

output:

89998
1 1
1 79999
2 1
2 79999
3 1
3 79999
4 1
4 79999
5 1
5 79999
6 1
6 79999
7 1
7 79999
8 1
8 79999
9 1
9 79999
10 1
10 79999
11 1
11 79999
12 1
12 79999
13 1
13 79999
14 1
14 79999
15 1
15 79999
16 1
16 79999
17 1
17 79999
18 1
18 79999
19 1
19 79999
20 1
20 79999
21 1
21 79999
22 1
22 79999
23 1...

result:

ok n: 10000, m: 79999, bishops: 89998

Test #25:

score: 0
Accepted
time: 11ms
memory: 4124kb

input:

10000 79998

output:

89996
1 1
1 79998
2 1
2 79998
3 1
3 79998
4 1
4 79998
5 1
5 79998
6 1
6 79998
7 1
7 79998
8 1
8 79998
9 1
9 79998
10 1
10 79998
11 1
11 79998
12 1
12 79998
13 1
13 79998
14 1
14 79998
15 1
15 79998
16 1
16 79998
17 1
17 79998
18 1
18 79998
19 1
19 79998
20 1
20 79998
21 1
21 79998
22 1
22 79998
23 1...

result:

ok n: 10000, m: 79998, bishops: 89996

Test #26:

score: 0
Accepted
time: 9ms
memory: 4120kb

input:

11111 100000

output:

111110
1 1
1 100000
2 1
2 100000
3 1
3 100000
4 1
4 100000
5 1
5 100000
6 1
6 100000
7 1
7 100000
8 1
8 100000
9 1
9 100000
10 1
10 100000
11 1
11 100000
12 1
12 100000
13 1
13 100000
14 1
14 100000
15 1
15 100000
16 1
16 100000
17 1
17 100000
18 1
18 100000
19 1
19 100000
20 1
20 100000
21 1
21 100...

result:

ok n: 11111, m: 100000, bishops: 111110

Test #27:

score: 0
Accepted
time: 1ms
memory: 3592kb

input:

1 1

output:

1
1 1

result:

ok n: 1, m: 1, bishops: 1

Extra Test:

score: 0
Extra Test Passed
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