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Need help on how to use lower and upper bound stl on vector<pair<int,int>>
I got always confused on how to leviate in-built stl function to use upper and lower bound. For eg: in yesterday previous B question I wrote my own upperBound on vector pair.
I think mostly there are 3 variation:
lowerbound on pair with smallest index lowerbound on pair with largest index
upperbound pair with smallest index
Thanx codeforces
