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++ 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

C++ define vector with size

#include <vector>

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

-1

Similar codes

0 vote245 views1 answer
C++ add everything in a vector
C++
-4 votes271 views2 answers
Unreal engine
C++
5 votes406 views2 answers
How to sort a string alphabetically in c++
C++
10 votes489 views6 answers
C to c++ converter online
C++
14 votes236 views6 answers
How to get size of array c++
C++
0 vote267 views1 answer
Cube mapping sdl
C++
1 vote292 views1 answer
Iff arduino
C++
0 vote279 views1 answer
Vs_buildtools.exe --norestart --passive --downloadThenInstall --includeRecommended --add Microsoft.VisualStudio.Workload.NativeDesktop --add Microsoft.VisualStudio.Workload.VCTools --add Microsoft.VisualStudio.Workload.MSBuildTools
C++
0 vote268 views1 answer
What is blob in computer vision
C++
0 vote297 views1 answer
A function to create double quotes for alphabet in c++
C++