C Program Using Dynamic Memory Allocation Function

Top C Program Using Dynamic Memory Allocation

C Program Using Dynamic Memory Allocation Function

C Program Using malloc () function in Dynamic Memory Allocation Function. Or C Program Using malloc () and free () function in Dynamic Memory Allocation Function.

#include <stdio.h> #include <conio.h> #include <stdlib.h> void main() { int num, i, *ptr, add = 0; printf("Enter number of elements:"); scanf("%d", &num); ptr = (int*) malloc(num * sizeof(int));    if(ptr == NULL) { printf("Error! Memory is not allocated."); exit(0); } printf("Enter elements: "); for(i = 0; i < num; ++i) { scanf("%d", ptr + i); add =add+ *(ptr + i); } printf("Add = %d", add); free(ptr); getch(); }

Output: Enter number of elements:3 Enter elements: 1 2 3 Add = 6

C Program Using calloc () function in Dynamic Memory Allocation Function. Or C Program Using calloc () and free () function in Dynamic Memory Allocation Function.

#include <stdio.h> #include <conio.h> #include <stdlib.h> void main() { int num, i, *ptr, add = 0; printf("Enter number of elements: "); scanf("%d", &num); ptr = (int*) calloc(num, sizeof(int)); if(ptr == NULL) { printf("Error! Memory is not allocated."); exit(0); } printf("Enter elements: "); for(i = 0; i < num; ++i) { scanf("%d", ptr + i); add =add+ *(ptr + i); } printf("add = %d", add); free(ptr); getch(); }

Output: Enter number of elements: 5 Enter elements: 1 2 3 4 5 add = 15

C Program Using realloc () function in Dynamic Memory Allocation Function. Or C Program Using calloc () and free () function in Dynamic Memory Allocation Function.

#include <stdio.h> #include <conio.h> #include <stdlib.h> Void main() { int *ptr, i , m1, m2; printf("Enter the size of list: "); scanf("%d", &m1); ptr = (int*)malloc(m1 * sizeof(int)); printf("Display the address of previously allocated memory: "); for(i = 0; i < m1; ++i) printf("%u\n",ptr + i); printf("\nEnter the new size of list: "); scanf("%d", &m2); ptr = realloc(ptr, m2 *sizeof(int));              printf("Display the address newly allocated memory: "); for(i = 0; i <m2; ++i) printf("%u\n", ptr + i); free(ptr); getch(); }

Output: Enter the size of list: 5 Display the address of previously allocated memory: 3753921216 3753921220 3753921224 3753921228 3753921232   Enter the new size of list: 3 Display the address of newly allocated memory: 3753921216 3753921220 3753921224

C Program storing element and finding the largest element in the array list using calloc () function in Dynamic Memory Allocation Function.

#include <stdio.h> #include <conio.h> #include <stdlib.h> void main()  { int number, i; float *n; printf("Enter the total number of elements in the list: "); scanf("%d", &number); n = (float *)calloc(number, sizeof(float)); if (n == NULL) { printf("Error!!! Memory is not allocated."); exit(0); } for (i = 0; i < number; ++i) { printf("Enter Number %d: ", i + 1); scanf("%f", n + i); } for (int i = 1; i < number; ++i) { if (*n < *(n + i)) *n = *(n + i); } printf("Largest number = %.2f", *n); getch(); }

Output:-Enter the total number of elements in the list: 5 Enter Number 1: 1 Enter Number 2: 2 Enter Number 3: 3 Enter Number 4: 4 Enter Number 5: 5 Largest number = 5.00