Linear Hash gives WA , Double Hash gives TLE How can I solve ? [SSTORY] [SOLVED]

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Question : “SSTORY Problem - CodeChef”

Linear Hash : “CodeChef: Practical coding for everyone” [WA]

Double Hash : “CodeChef: Practical coding for everyone” [TLE]

Help @everule1 @ssjgz @galencolin @ay2306

2

Solved using unordered set of pair after 8 penalities.

“Use pair as a key in std::unordered_set in C++ | Techie Delight”

My solution : “CodeChef: Practical coding for everyone”