Answers for "vectors size in c++"

C++
17

c++ vector size

#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
}
Posted by: Guest on May-16-2020
0

define vector with size and value c++

// CPP program to create an empty vector
// and push values one by one.
#include <iostream>
#include <vector>
using namespace std;
 
int main()
{
    int n = 3;
 
    // Create a vector of size n with
    // all values as 10.
    vector<int> vect(n, 10);
 
    for (int x : vect)
        cout << x << " ";
 
    return 0;
}
Posted by: Guest on March-05-2022

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