How to get array length in C++

Answer 1

You ca. do it like this:

sizeof(arr) / sizeof(*arr);

Answer 2

int list[5];

int amount = list.size()

Answer 3

simplier, you can use vectors instead of arrays

#include <vector>

vector<int> vec;
vec.push_back(7);
vec.push_back(46);
vec.push_back(16);
cout << vec.size() << endl;
for(int i= 0; i<vec.size(); i++){
cout << vec[i] << " ";
}

3
7 46 16