Answers for "declaring a vector of size n c++"

C++
2

c++ initialize vector of vector with size

vector<vector<int>> v(10, vector<int>(10));
Posted by: Guest on May-24-2021
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
-1

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;
Posted by: Guest on July-15-2020

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