Question

Write a C program

Design a program that uses an array to store 10 randomly generated integer numbers in the range from 1 to 50. The program should first generate random numbers and save these numbers into the array. It will then provide the following menu options to the user:

1. Display 10 random numbers stored in the array
2. Compute and display the largest number in the array
3. Compute and display the average value of all numbers
4. Exit

The options 2 and 3 should call an appropriate user-defined function and pass the array to the function to compute the largest and the average value respectively. Design and call these two user-defined functions. The average value should be calculated and displayed with a precision of two decimal places.

The program should loop back to the main menu until the user selects the option to exit the program.

Use the register storage class for two the most frequently used variables in your program.

Submit your program's source code (i.e., .c file) and a file with screen captures of your program's.

Answer 1

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int lrge(int [],int );
float avge(int [],int );

void main()
{
        register int i; 
        int rand_array[10],ch;
        srand(time(NULL));
        for(i = 0; i<10; i++) 
        rand_array[i]= rand()%50 +1 ; 
    
        printf("\n---------------------------MENU-------------------------\n\n");
                printf("\n1. Display 10 random numbers stored in the array\n\n");
                printf("\n2. Compute and display the largest number in the array\n\n");
                printf("\n3. Compute and display the average value of all numbers\n\n");
                printf("\n4. Exit\n\n");
                
                  
    do
        {    
        printf("\nPlease Enter Your Choice (1 - 4): ");
                scanf("%d", &ch);  
                switch(ch)
                {
                        case 1 :        printf("\nThe Random numbers stored in the array are : ");
                                                for(i=0;i<10;i++)
                                                        printf("%d ", rand_array[i]);   
                                                printf("\n");
                                                break;
                        
                        case 2  :       printf("\nThe largest number in the array is :   %d", lrge(rand_array, 10));
                                                printf("\n");
                                                break;
                        case 3  :       printf("\nThe average value of all numbers :   %.2f", avge(rand_array, 10));
                                                printf("\n");
                                                break;
                        case 4  :       printf("\nThank You. Program is Exiting\n\n");
                                                break;
                        
                }
        
        }
        while(ch!=4);
        
}

int lrge(int ar1[],int n)
{  
    int large=ar1[0];
    static int j;
        for( j=0;j<n;j++)
        {       
                if(ar1[j]>large)
                {
                        large=ar1[j];
                }
                
        }
        return(large);  
}


float avge(int ar1[],int n)
{  
    int sum=0;
    float avg;
    static int j;
        for( j=0;j<n;j++)
        {       
                sum=sum+ar1[j];         
        }
        avg=(float)sum/n;
        return(avg);    
}

--MENU- 1. Display 10 random numbers stored in the array 2. Compute and display the largest number in the array 3. Compute and display the average value of all numbers 4. Exit Please Enter Your Choice (1 - 4): 1 The Random numbers stored in the array are : 24 49 8 2 44 8 49 15 21 7 Please Enter Your Choice (1 - 4): 2 The largest number in the array is : 49 Please Enter Your Choice (1 - 4): 3 The average value of all numbers : 22.70 Please Enter Your Choice (1 - 4): 4 Thank You. Program is Exiting Press any key to continue Type here to search

Note : Here we are using rand() to generate random number. srand() used generate seed rand() so that it will create different set of random values in each execution.