422 . 第 K 名的逆襲

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User's AC Ratio

100.0% (5/5)

Submission's AC Ratio

50.0% (5/10)

Tags

ytp ytp-senior ytp-2020

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

3 2
1 7122
1 7111
2

Sample Output 1

7122

Sample Input 2

3 1
1 7122
2
2

Sample Output 2

7122
-1

Sample Input 3

5 2
1 7122
1 7122
1 71227122
2
2

Sample Output 3

7122
71227122

Hints

Problem Source

YTP 2020 高中組程式挑戰營 p7

Subtasks

No. Testdata Range Constraints Score
1 0~2 範例測資 0
2 0~5 無額外限制 10

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 262144 65536 1 2
1 1000 262144 65536 1 2
2 1000 262144 65536 1 2
3 1000 262144 65536 2
4 1000 262144 65536 2
5 1000 262144 65536 2
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