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TopCoder

Caido

$\mathbb{W}\mathcal{aimai}\sim$

User's AC Ratio

52.9% (9/17)

Submission's AC Ratio

30.8% (16/52)

Tags

TOI TOI-pre 2022-TOI-pre

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

3 3

Sample Output 1

-1

Sample Input 2

4 3

Sample Output 2

4 2
2 1
3 3
1 2
3 1
4 3
2 2
4 1
1 3
3 2
1 1
2 3
4 2

Hints

Problem Source

2022 TOI 初選
測資來源：TWPCA GitHub

Subtasks

No.	Testdata Range	Constraints	Score
1	0~1	範例測資。	0
2	2~20	$nm \le 16$	7
3	21~99	$n = 2$ 或 $m = 2$	35
4	100~186	$n \ge 12$ 且 $m \ge 12$	47
5	187~222	無額外限制。	11

Testdata and Limits

No.	Time Limit (ms)	Memory Limit (VSS, KiB)	Output Limit (KiB)	Subtasks
0	500	1048576	65536	1
1	500	1048576	65536	1
2	500	1048576	65536	2
3	500	1048576	65536	2
4	500	1048576	65536	2
5	500	1048576	65536	2
6	500	1048576	65536	2
7	500	1048576	65536	2
8	500	1048576	65536	2
9	500	1048576	65536	2
10	500	1048576	65536	2
11	500	1048576	65536	2
12	500	1048576	65536	2
13	500	1048576	65536	2
14	500	1048576	65536	2
15	500	1048576	65536	2
16	500	1048576	65536	2
17	500	1048576	65536	2
18	500	1048576	65536	2
19	500	1048576	65536	2
20	500	1048576	65536	2
21	500	1048576	65536	3
22	500	1048576	65536	3
23	500	1048576	65536	3
24	500	1048576	65536	3
25	500	1048576	65536	3
26	500	1048576	65536	3
27	500	1048576	65536	3
28	500	1048576	65536	3
29	500	1048576	65536	3
30	500	1048576	65536	3
31	500	1048576	65536	3
32	500	1048576	65536	3
33	500	1048576	65536	3
34	500	1048576	65536	3
35	500	1048576	65536	3
36	500	1048576	65536	3
37	500	1048576	65536	3
38	500	1048576	65536	3
39	500	1048576	65536	3
40	500	1048576	65536	3
41	500	1048576	65536	3
42	500	1048576	65536	3
43	500	1048576	65536	3
44	500	1048576	65536	3
45	500	1048576	65536	3
46	500	1048576	65536	3
47	500	1048576	65536	3
48	500	1048576	65536	3
49	500	1048576	65536	3
50	500	1048576	65536	3
51	500	1048576	65536	3
52	500	1048576	65536	3
53	500	1048576	65536	3
54	500	1048576	65536	3
55	500	1048576	65536	3
56	500	1048576	65536	3
57	500	1048576	65536	3
58	500	1048576	65536	3
59	500	1048576	65536	3
60	500	1048576	65536	3
61	500	1048576	65536	3
62	500	1048576	65536	3
63	500	1048576	65536	3
64	500	1048576	65536	3
65	500	1048576	65536	3
66	500	1048576	65536	3
67	500	1048576	65536	3
68	500	1048576	65536	3
69	500	1048576	65536	3
70	500	1048576	65536	3
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72	500	1048576	65536	3
73	500	1048576	65536	3
74	500	1048576	65536	3
75	500	1048576	65536	3
76	500	1048576	65536	3
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78	500	1048576	65536	3
79	500	1048576	65536	3
80	500	1048576	65536	3
81	500	1048576	65536	3
82	500	1048576	65536	3
83	500	1048576	65536	3
84	500	1048576	65536	3
85	500	1048576	65536	3
86	500	1048576	65536	3
87	500	1048576	65536	3
88	500	1048576	65536	3
89	500	1048576	65536	3
90	500	1048576	65536	3
91	500	1048576	65536	3
92	500	1048576	65536	3
93	500	1048576	65536	3
94	500	1048576	65536	3
95	500	1048576	65536	3
96	500	1048576	65536	3
97	500	1048576	65536	3
98	500	1048576	65536	3
99	500	1048576	65536	3
100	500	1048576	65536	4
101	500	1048576	65536	4
102	500	1048576	65536	4
103	500	1048576	65536	4
104	500	1048576	65536	4
105	500	1048576	65536	4
106	500	1048576	65536	4
107	500	1048576	65536	4
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109	500	1048576	65536	4
110	500	1048576	65536	4
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123	500	1048576	65536	4
124	500	1048576	65536	4
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127	500	1048576	65536	4
128	500	1048576	65536	4
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131	500	1048576	65536	4
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134	500	1048576	65536	4
135	500	1048576	65536	4
136	500	1048576	65536	4
137	500	1048576	65536	4
138	500	1048576	65536	4
139	500	1048576	65536	4
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142	500	1048576	65536	4
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159	500	1048576	65536	4
160	500	1048576	65536	4
161	500	1048576	65536	4
162	500	1048576	65536	4
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166	500	1048576	65536	4
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168	500	1048576	65536	4
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184	500	1048576	65536	4
185	500	1048576	65536	4
186	500	1048576	65536	4
187	500	1048576	65536	5
188	500	1048576	65536	5
189	500	1048576	65536	5
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221	500	1048576	65536	5
222	500	1048576	65536	5

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