find vector size in c++
#include <vector>
int main() {
std::vector<int> myVector = { 666, 1337, 420 };
size_t size = myVector.size(); // 3
myVector.push_back(399); // Add 399 to the end of the vector
size = myVector.size(); // 4
}
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3.8
10
vector<int> a;
//to directly find the size of the vector;
//use a.size(;
cout <<" " << a.size();
Thank you!
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