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

5 votes148 views2 answers
Return multiple values c++
C++
0 vote145 views1 answer
Sfml time set
C++
6 votes124 views2 answers
Get data from terminal c++
C++
0 vote155 views2 answers
C++ compile to msi
C++
0 vote128 views1 answer
Age in days in c++
C++
2 votes157 views1 answer
MPI_file_open
C++
1 vote128 views1 answer
How to read a comma delimited file into an array c++
C++
2 votes135 views1 answer
Recursive binary search
C++
0 vote102 views1 answer
How to shorten code using using c++ in class with typename
C++
1 vote128 views1 answer
How to add colored text in c++
C++