Create a vector of size n in c++

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
}

C++ initialize vector of vector with size

vector<vector<int>> v(10, vector<int>(10));

Create a vector of size n in c++

// create a vector with n integer elements
std::vector<int> arr(n);
// create a vector with n integer elements initalized at 0 
std::vector<int> vector1(n, 0);

Source: stackoverflow.com

C++ create vector of size

// create a vector with 20 integer elements
std::vector<int> arr(20);

for(int x = 0; x < 20; ++x)
   arr[x] = x;

-1

Source: stackoverflow.com

Declare vector of size n in c++

#include <vector>

auto n = 20
// create a vector with n=20 integer elements
std::vector<int> arr(n);

-1

Similar codes

0 vote180 views1 answer
Qrandomgenerator bounded
C++
-2 votes185 views1 answer
C++ constant
C++
-1 vote233 views1 answer
C++ forloop
C++
66 votes248 views8 answers
Dogecoin price
C++
0 vote178 views1 answer
How to manually start windows app
C++
0 vote183 views1 answer
How to show constellations in starry night orion special edition
C++
2 votes197 views1 answer
Size of stack in c++
C++
0 vote206 views1 answer
Visual studio code include path not working c++
C++
0 vote192 views1 answer
C++ over load oprator to print variable of clas
C++
0 vote181 views1 answer
C++ foreach
C++