C Program to find a larger number between two numbers.

Code:

#include<stdio.h>
int *Large(int *, int *);
int main()
{
  int a=5,b=10,*p;
  p = Large(&a,&b);
  
  printf("Larger number between %d and %d is %d.",a,b,*p);
}
int *Large(int *x, int *y)
{
  if(*x>*y)
    return (x);
  else
    return (y);  
}

Output:

Larger number between 5 and 10 is 10.

C Program to Access Array Elements Using Pointer

Code:

#include <stdio.h>
int main()
{
    int array[5];
    printf("Enter values : ");
    for (int i = 0; i < 5; ++i)
        scanf("%d", array + i);

    printf("Elements of Array: \n");
    for (int i = 0; i < 5; ++i)
        printf("Element[%d] = %d\n", i, *(array + i));
    return 0;
}

Output:

Enter values : 1
2
3
4
5
Elements of Array: 
Element[0] = 1
Element[1] = 2
Element[2] = 3
Element[3] = 4
Element[4] = 5

C Program Swap Numbers in Cyclic Order Using Call by Reference

Code:

#include <stdio.h>
void Swap(int *x, int *y, int *z);
int main()
{
    int x, y, z;
    printf("Enter first value: ");
    scanf("%d", &x);
    printf("Enter second value: ");
    scanf("%d", &y);
    printf("Enter third value: ");
    scanf("%d", &z);
    printf("Before swapping:\n");
    printf("x = %d \ny = %d \nz = %d\n", x, y, z);
    Swap(&x, &y, &z);
    printf("After swapping:\n");
    printf("x = %d \ny = %d \nz = %d\n", x, y, z);
    return 0;
}
void Swap(int *a, int *b, int *c)
{
    int temp;
    temp = *b;
    *b = *a;
    *a = *c;
    *c = temp;
}

Output:

Enter first value: 1
Enter second value: 2
Enter third value: 3
Before swapping:
x = 1 
y = 2 
z = 3
After swapping:
x = 3 
y = 1 
z = 2

C Program to Find Largest Number Using Dynamic Memory Allocation

Code:

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int number;
    float *value;
    printf("Enter number of values: ");
    scanf("%d", &number);
    value = (float *)calloc(number, sizeof(float));
    if (value == NULL)
    {
        printf("Memory not allocated");
        exit(0);
    }
    for (int i = 0; i < number; ++i)
    {
        printf("Value %d: ", i + 1);
        scanf("%f", value + i);
    }
    for (int i = 1; i < number; ++i)
    {
        if (*value < *(value + i))
            *value = *(value + i);
    }
    printf("Maximum value is %.2f\n", *value);
    return 0;
}

Output:

Enter number of values: 4
Value 1: 10
Value 2: 20
Value 3: 30
Value 4: 40
Maximum value is 40.00