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Caido
$\text{W}ai\text{M}ai\sim$

User's AC Ratio

72.7% (8/11)

Submission's AC Ratio

48.1% (13/27)

Description

Input Format

Output Format

Sample Input

// Sample input 1
3 3

// Sample input 2
4 3

Sample Output

// Sample output 1
-1

// 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 (KiB) Output Limit (KiB) Subtasks
0 500 1048576 65536 1
1 500 1048576 65536 1
2 500 1048576 65536 2
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