find in set of pairs using first value cpp
auto it = std::find_if(st.begin(), st.end(), [](const pair<int,int>& p ){ return p.first == 1; });find in set of pairs using first value cpp
auto it = std::find_if(st.begin(), st.end(), [](const pair<int,int>& p ){ return p.first == 1; });Copyright © 2021 Codeinu
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