Answers for "[error] 'a' was not declared in this scope"

error: 'endl' was not declared in this scope

using namespace std;

Explanation:
mention "using namespace std;" above the main function in C++ will solve the 'endl' error

Posted by: Guest on July-27-2020

set was not declared in this scope

#include <set>

Posted by: Guest on December-25-2021

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