Question

How to find element in a vector container with int numbers in C++

Answer 1

#include <iostream>
#include <vector>

using namespace std;

int main()
{
	vector<int> vec = { 4, 5, 2, 1, 7, 3, 6, 0 };

	// find the first element with value 1
	auto indexval1 = find(vec.begin(), vec.end(), 1);
	if (vec.end() == indexval1)
		std::cout << "not found" << std::endl;
	else
		std::cout << "found" << std::endl;

	return 0;
}

/*
run:

found

*/

 

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