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

0 vote214 views2 answers
How can we create 4 digit random number in c++
C++
0 vote207 views1 answer
Gamemaker studio
C++
0 vote176 views2 answers
Stoi function in c++ library
C++
0 vote203 views1 answer
10^18 data type in c++
C++
1 vote195 views1 answer
On component end overlap c++
C++
9 votes138 views1 answer
C++ read file to string
C++
0 vote196 views1 answer
Argument to number C++
C++
1 vote188 views1 answer
Qlabel set text color
C++
0 vote217 views1 answer
Qt file explorer
C++
37 votes180 views3 answers
C++ hello word
C++