2333 . D. 分子環 (molecule)

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快去寫 TIOJ 2311 > <

User's AC Ratio

33.3% (2/6)

Submission's AC Ratio

16.1% (5/31)

Tags

TOI TOI-pre 2023-TOI-pre

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

2 1 1

Sample Output 1

-1

Sample Input 2

2 1 2

Sample Output 2

2
XXYXY

Sample Input 3

0 0 4

Sample Output 3

2
XXYY

Sample Input 4

4 4 0

Sample Output 4

1
XYXYXYXY

Sample Input 5

5 3 10

Sample Output 5

3
XYYYXYYXYXXXYXXYXX

Hints

Problem Source

Subtasks

No. Testdata Range Constraints Score
1 0~4 範例測資 0
2 0~3, 5~103 $a+b+c \le 15$ 8
3 0~177 $a,b,c \le 20$ 29
4 178~221 $b = 0$ 且 $2a \ge c$ 21
5 0~296 無額外限制 42

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 500 524288 65536 1 2 3 5
1 500 524288 65536 1 2 3 5
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3 500 524288 65536 1 2 3 5
4 500 524288 65536 1 3 5
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