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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#214536#7178. BishopsGuanYunchangWA 19ms5140kbC++23907b2023-10-14 20:52:292023-10-14 20:52:30

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3596kb

input:

2 5

output:

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

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

5 5

output:

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

result:

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

Test #3:

score: 0
Accepted
time: 16ms
memory: 5136kb

input:

100000 100000

output:

199998
1 1
1 3
1 5
1 7
1 9
1 11
1 13
1 15
1 17
1 19
1 21
1 23
1 25
1 27
1 29
1 31
1 33
1 35
1 37
1 39
1 41
1 43
1 45
1 47
1 49
1 51
1 53
1 55
1 57
1 59
1 61
1 63
1 65
1 67
1 69
1 71
1 73
1 75
1 77
1 79
1 81
1 83
1 85
1 87
1 89
1 91
1 93
1 95
1 97
1 99
1 101
1 103
1 105
1 107
1 109
1 111
1 113
1 115
...

result:

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

Test #4:

score: -100
Wrong Answer
time: 19ms
memory: 5140kb

input:

100000 99999

output:

199996
1 1
3 1
5 1
7 1
9 1
11 1
13 1
15 1
17 1
19 1
21 1
23 1
25 1
27 1
29 1
31 1
33 1
35 1
37 1
39 1
41 1
43 1
45 1
47 1
49 1
51 1
53 1
55 1
57 1
59 1
61 1
63 1
65 1
67 1
69 1
71 1
73 1
75 1
77 1
79 1
81 1
83 1
85 1
87 1
89 1
91 1
93 1
95 1
97 1
99 1
101 1
103 1
105 1
107 1
109 1
111 1
113 1
115 1
...

result:

wrong answer Participant's answer is not optimal (199996 < 199998)