Reference PersistentSimpleSegmentTree

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PersistentSimpleSegmentTree - Tourist Implementation

Problems:

• https://codeforces.com/contest/1771/problem/F
• https://codeforces.com/contest/484/problem/E
• https://codeforces.com/contest/786/problem/C
• https://codeforces.com/contest/786/problem/B
• https://codeforces.com/contest/1208/problem/D
• https://codeforces.com/contest/52/problem/C
• https://codeforces.com/contest/380/problem/C