We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. C++
  3. Introduction
  4. Arrays Introduction
  5. Discussions

Arrays Introduction

  • DylJFern
     + 0 comments

    //Dynamic allocation of an array

    int *arrPtr{}, userInput{};

cin >> userInput; 
arrPtr = new int[userInput]; //allocate array at runtime

for(size_t i{1}; i<=userInput; i++) { 
	cin >> arrPtr[i-1]; //store elements starting at index 0
}

for(size_t j{1}; j<=userInput; j++) {
	cout << arrPtr[userInput-j] << " ";
}

delete [] arrPtr; //free allocated storage (good practice)

    //Pre-defined array with a fixed size (based on constraints)

    int userInput{}, arrFixed[1000]{};
    
cin >> userInput;
    
for(size_t i{1}; i<=userInput; i++) {
		cin >> arrFixed[i-1]; 
}

for(size_t j{1}; j<=userInput; j++) {
		cout << arrFixed[userInput-j] << " ";
}