c++ count number of element in vector
count(vect.begin(), vect.end(), 3)
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count function vector c++
// CPP program to count vector elements that // match given target value. #include <algorithm> #include <iostream> #include <vector> using namespace std; int main() { vector<int> v{ 10, 30, 30, 10, 30, 30 }; int target = 30; int res = count(v.begin(), v.end(), target); cout << "Target: " << target << " Count : " << res << endl; return 0; }
Source: www.geeksforgeeks.org