Answer:
The program to this question can be given as:
Program:
#include <stdio.h> //include header files.
#include <limits.h>
//declaration of function
void find_three_smallest(int a[], int n, int *small, int *second_smallest, int *third_smallest);
//definitation of function
void find_three_smallest(int a[], int n, int *smallest, int *second_smallest, int *third_smallest)
{//function body.
int i, first_number, second_number, third_number; //define variable.
// There should atleast be three values
if (n < 3) //check condition.
{
printf(" Invalid Input "); //print message.
return;
}
first_number = second_number = third_number = INT_MAX;
for (i = 0; i < n ; i ++) //Using loop
{
//conditional statements.
// If current element is smaller than first then update all
if (a[i] < first_number)
{
third_number = second_number;
second_number = first_number;
first_number = a[i];
}
else if (a[i] < second_number )
{
third_number = second_number;
second_number = a[i];
}
else if (a[i] < third_number )
{
third_number = a[i];
}
}
//print values.
printf("The smallest value =%i\n",first_number);
printf("Second_smallest value =%i\n",second_number);
printf("Third_smallest value =%i\n",third_number);
}
//main method
int main()
{
int num, small, second_small, third_small; //define variable.
int x[6] = {1,3,4,5,1,2}; //define 1-D array.
num = sizeof(x)/sizeof(x[0]);
find_three_smallest(x,num ,&small, &second_small, &third_small); //calling function.
return 0;
}
Output:
The smallest value = 1
Second_smallest value = 1
Third_smallest value = 2
Explanation:
In the above C language program firstly we declare a function that's name is already given in the question.
In this function we define the variable that takes all value from the main function and checks that the given values(numbers) are greater then 3. if the value is greater then 3 functions arranged values and finds the smallest, second smallest and third smallest value and print it. In the main function, we define a 1_D array. In that array, we assign the value and pass the value to the function. In the next line, we calling the function.
