c++ dynamic array

coder answered on August 12, 2020 Popularity 1/10 Helpfulness 1/10

answer c++ dynamic array

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c++ dynamic array

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int n;                   //number of element
cin>>n;                 //input from user

int *arr=new int[n]     //array in heap

for(int i=0;i<n;i++)
{
   cin>>arr[i];        //input element in array
}

for(int i=0;i<n;i++)
{
   cout<<arr[i]<<" ";   //output element in array
}

delete[] arr;     //delete elements from array

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Contributed on Dec 03 2021

coder

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declare dynamic array c++

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int main()
{
  int size;

  std::cin >> size;

  int *array = new int[size];

  delete [] array;

  return 0;
}

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Source: stackoverflow.com

Tags: c++

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Contributed on Aug 12 2020

Ashamed Addax

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dynamically generating array in cpp

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int *array = new int[size];

Popularity 10/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Oct 08 2021

Defiant Dingo

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c++ dynamic array

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//A dynamic array is a pointer that contains multiple objects or pointers.

int size = 5; //Size of the array

/*
"new" keyword tells your computer to allocate memory
and return a pointer to that memory.
*/

int* array = new int[size];

int* array = new int[size] { 5, 6, 1, 2, 8 }; //Optional initializer

/*
Always use delete or delete[] to free a dynamic pointer.
Do not use to free a pointer or an array that was not created with 
"new" or "malloc()"
NOTE: delete frees a pointer whereas delete[] removes an array.
*/
delete[] array;

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Source: Grepper

Tags: c++

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Contributed on Mar 28 2022

Brainy Batfish

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c++ dynamic array

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