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check if element in std vector
#include <iostream>
#include <vector>
#include <algorithm>
int main()
{
std::vector<int> v = { 4, 7, 5, 2, 6, 9 };
int key = 6;
if (std::count(v.begin(), v.end(), key))
std::cout << "Element found";
else
std::cout << "Element not found";
return 0;
}
Source: www.techiedelight.com
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