1148 . 字典問題

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

npsc npsc-junior npsc-2018

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

3
5 2
aaccc
5 2
zzzqp
5 2
zzzqq

Sample Output 1

aaccf
zzzqq
-1

Sample Input 2

2
1 0
z
10 4
helloworld

Sample Output 2

-1
helloworle

Hints

Problem Source

NPSC 2018 國中組初賽 pC

Subtasks

No. Testdata Range Constraints Score
1 0~1 範例測資 0
2 0~13 無額外限制 100

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 1048576 1048576 1 2
1 1000 1048576 1048576 1 2
2 1000 1048576 1048576 2
3 1000 1048576 1048576 2
4 1000 1048576 1048576 2
5 1000 1048576 1048576 2
6 1000 1048576 1048576 2
7 1000 1048576 1048576 2
8 1000 1048576 1048576 2
9 1000 1048576 1048576 2
10 1000 1048576 1048576 2
11 1000 1048576 1048576 2
12 1000 1048576 1048576 2
13 1000 1048576 1048576 2
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