Std distance

// Calculates the number of elements between first and last.

#include <iterator>     									// std::distance
#include <vector>     										// std::vector
#include <algorithm>   							// Just if you use std::find

vector<int> arr = {2,5,3,8,1};
int size = std::distance(arr.begin(), arr.end()); 			// 5

auto it = std::find(arr.begin(), arr.end(), 8);
int position = std::distance(arr.begin(), it); 				// 3

Similar codes

12 votes208 views6 answers
Loop through map c++
C++
3 votes210 views1 answer
Initialize dynamic array c++ to 0
C++
1 vote230 views1 answer
C++ vector of class objects
C++
0 vote203 views1 answer
Compilling c++ and c by console
C++
2 votes222 views1 answer
Find character in string c++
C++
9 votes225 views3 answers
C++ throw exception
C++
1 vote213 views1 answer
How to traverse a linked list in c++
C++
0 vote217 views1 answer
C++ delete printed characters
C++
6 votes234 views6 answers
C++ sort vector
C++
102 votes310 views6 answers
Git config username and password
C++