Question

How to remove elements from vector based on condition in C++

Answer 1

#include <iostream>
#include <vector>
#include <algorithm>

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

int main()
{
	vector<int> vec{ 1,2,3,4,5,6,7,8,9 };

	vec.erase(std::remove_if(
		vec.begin(), vec.end(),
		[](const int &n) {
		return (n % 2) == 0;
	}), vec.end());

	for (int val : vec)
		cout << val << " ";

	cout << endl;

	return 0;
}


/*
run:

1 3 5 7 9

*/

 

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