Question

Write program in C.

Please ask the user to determine how many numbers to enter, and then find and display the largest one with two digits.

Please call the following two functions in your main functions. void input_numbers(float *data, int num); void find_largest(float *data, int num);

Note: In this assignment, please save the entered numbers using pointer, pass the pointer as the arguments. Depending upon the number of elements, the required size is allocated which prevents the wastage of memory. If no memory is allocated, error is displayed, and the program is terminated.

Answer 1

#include <stdio.h>
#include <stdlib.h>

//function to get the input from user
void input_numbers(float *data, int num)
{
//variable declaration
float inputNum;
  
//display message
printf("\nEnter numbers: ");
  
//get input from the user
for(int i=1; i<=num; i++)
{
scanf("%f", &inputNum);
*data = inputNum;
data++;
}
}

//function to find the largest element
void find_largest(float *data, int num)
{
//variable declaration and initialization
float largest = *data;
  
//increment the pointer
data++;
  
for(int i=1; i<=num; i++)
{
if(largest < *data)
{
largest = *data;
}
data++;
}
  
//display the largest number up to two decimal digit
printf("\nThe largest number is: %.2f", largest);
}

int main()
{
//variable declaration
int num;
  
//display message
printf("How many element you want to enter: ");
scanf("%d", &num);
  
float *dataPtr = (float*) calloc(num, sizeof(float));
  
//check if memory is not allocated
if (dataPtr == NULL)
{
printf("Could not allocate memory\n");
exit(-1);
}
  
//function calling
input_numbers(dataPtr, num);
  
//function calling
find_largest(dataPtr, num);
return 0;
}

OUTPUT:

How many element you want to enter: 5 Enter numbers: 12.25 20.21 56.55 98.50 10.20 The largest number is: 98.50