🚀Functions

String

Function	Remark	Time Complexity
int stoi(string str)	Convert Given String to Integer	O(n)
stol(), stoll(), stod()	Convert Given string to long, long long, double	O(n)

Algorithm

Function	Remark	Time Complexity
void swap(any &a, any &b)	Sawps two variable of any type; both same type. Takes value by reference. Very fast.	O(1) for non array. O(n) for array.
any &min(any &a, any &b) also max()	Returns the minimum of a and b. If both are equivalent then return a.	O(1)
any &min(any &a, any &b, Compare comp) also max()	Same as normal min but takes a custom comparator funciton.	O(1)
void sort(it first, it last)	Sorts the elements in the range [first,last) into ascending order.	O(N * log N)
void sort(it first, it last, Compare comp)	Same as normal sort but takes a comparator function.	O(N * log N)

Comparator Function: A boolean function that takes two input of same type and reutrn true when the first element is found to be smaller than the second element.