Kritik is developing a program to combine two arrays into one by reallocating memory for the first array to double its size and allocating memory for the second array. Utilizing malloc for initial memory allocation and realloc for resizing, Kritik aims to efficiently handle arrays of integers.Input format :The first line contains an integer N, representing the size of both arrays.The second line contains N space-separated integers, representing the elements of the first array.The third line contains N space-separated integers, representing the elements of the second array.Output format :The output displays the combined array containing elements from both arrays, after reallocating memory for the first array to double its size and appending the elements of the second array.
Question
Kritik is developing a program to combine two arrays into one by reallocating memory for the first array to double its size and allocating memory for the second array. Utilizing malloc for initial memory allocation and realloc for resizing, Kritik aims to efficiently handle arrays of integers.Input format :The first line contains an integer N, representing the size of both arrays.The second line contains N space-separated integers, representing the elements of the first array.The third line contains N space-separated integers, representing the elements of the second array.Output format :The output displays the combined array containing elements from both arrays, after reallocating memory for the first array to double its size and appending the elements of the second array.
Solution
Sure, here is a step-by-step guide on how to solve this problem in C:
- First, we need to include the necessary libraries. We will need
stdio.hfor input/output functions andstdlib.hfor memory allocation functions.
#include <stdio.h>
#include <stdlib.h>
- Next, we declare our main function and the variables we will need. We need an integer
Nfor the size of the arrays, and two pointers to integersarr1andarr2for the arrays themselves.
int main() {
int N;
int *arr1, *arr2;
- We read the size of the arrays from the user.
scanf("%d", &N);
- We allocate memory for the arrays using
malloc. We also check if the memory allocation was successful.
arr1 = (int*) malloc(N * sizeof(int));
arr2 = (int*) malloc(N * sizeof(int));
if (arr1 == NULL || arr2 == NULL) {
printf("Memory allocation failed\n");
return 1;
}
- We read the elements of the first array from the user.
for (int i = 0; i < N; i++) {
scanf("%d", &arr1[i]);
}
- We read the elements of the second array from the user.
for (int i = 0; i < N; i++) {
scanf("%d", &arr2[i]);
}
- We reallocate memory for the first array to double its size using
realloc. We also check if the memory reallocation was successful.
arr1 = (int*) realloc(arr1, 2 * N * sizeof(int));
if (arr1 == NULL) {
printf("Memory reallocation failed\n");
return 1;
}
- We append the elements of the second array to the first array.
for (int i = 0; i < N; i++) {
arr1[N + i] = arr2[i];
}
- We print the combined array.
for (int i = 0; i < 2 * N; i++) {
printf("%d ", arr1[i]);
}
printf("\n");
- Finally, we free the memory we allocated for the arrays and return 0 to indicate that the program has finished successfully.
free(arr1);
free(arr2);
return 0;
}
This is the complete program. It reads two arrays from the user, combines them into one by reallocating memory for the first array to double its size and appending the elements of the second array, and prints the combined array.
Similar Questions
Disha is developing a program to process two arrays of integers. She wants to delete all elements from the first array that are present in the second array. Utilizing dynamic memory allocation, she plans to use malloc to allocate memory for both arrays and realloc to resize the first array after deletion.Input format :The first line contains an integer N, representing the size of the first array.The next N lines contain the elements of the first array.The next line contains an integer M, representing the size of the second array.The next M lines contain the elements of the second array.
Stuart is working on a program to manage arrays. Given an initial array size and elements, the program resizes the array to twice its original size and fills the additional places with the same original elements. Write a program to help Stuart dynamically allocate the memory for the array using malloc(), and then resize using realloc(), and then print the elements of the resized array.Input format :The first line of input consists of an integer N, representing the initial size of the array.The second line consists of N space-separated integers, representing the initial elements of the sequence.
Single File Programming QuestionProblem StatementGiven two arrays of size N, write a program to merge the arrays of integers into a single array by interleaving their elements. Input the size N and the elements of both arrays. Implement a solution that interleaves the elements alternately from both arrays and outputs the merged array.For Example, If the arrays are {12, 28, 54} and {48, 67, 35}, then the resultant array is {12, 48, 28, 67, 54, 35}.Note: This question helps in solving the technical coding tests in Infosys, Capgemini and TCS.Input format :The first line of input consists of an integer N, representing the size of the arrays.The second line consists of N space-separated elements of the first array.The third line consists of N space-separated elements of the second array.Output format :The output prints the resultant array.Code constraints :1 ≤ N ≤ 101 ≤ array elements ≤ 250Sample test cases :Input 1 :512 15 19 23 1834 31 78 59 65Output 1 :12 34 15 31 19 78 23 59 18 65 Input 2 :312 28 5448 67 35Output 2 :12 48 28 67 54 35
Rohit is tasked with writing a program to check if two integer arrays are equal. The program should take two arrays as input and determine whether they are equal, i.e., they have the same elements in the same order.Your task is to help Rohit to complete this task.Input format :The first line of input consists of an integer N, representing the size of the first array.The second line consists of N space-separated integers, representing the elements of the first array.The third line consists of an integer M, representing the size of the second array.The fourth line consists of M space-separated integers, representing the elements of the second array.Output format :If the two arrays are equal, the output prints "Equal". Else, print "Not Equal".Refer to the sample output for formatting specifications.Code constraints :1 ≤ N, M ≤ 101 ≤ array elements ≤ 1000Sample test cases :Input 1 :31 2 331 2 3Output 1 :EqualInput 2 :31 2 341 2 3 4Output 2 :Not EqualInput 3 :378 96 54378 54 96Output 3 :Not Equal
What is the input for merging algorithm?a.Unsorted arrayb.Two arraysc. Integersd.Characters
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