Question

How to count vector elements with specific value in C++

Answer 1

#include <iostream>
#include <vector>

using std::vector;
using std::cout;
using std::endl;

int main()
{
	vector<int> vec{ 1, 3, 8, 3, 23, 99, 12, 3, 7, 3 };

	int c = count(vec.cbegin(), vec.cend(), 3);

	cout << c << endl;

	return 0;
}


/*
run:

4

*/

 

70+ SQL courses for beginners and professionals