Problem C: 快速的排序(quicksort) Problem C: 快速的排序(quicksort)
Time Limit: 15.000 Sec Memory Limit: 512 MB
Submit: 29 Solved: 2
[Submit] [Status] [Web Board] [Creator:]Description
Output
Sample Input
10 5
abacdabcda
7 10 0
5 8 1
1 4 0
3 6 0
7 10 1
Sample Output
cbcaaaabdd
HINT
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