Question

In C programming please

(b) You will write a program that will do the following: prompt the user enter characters from the keyboard, you will read the characters until reading the letter 'O' You will compule statistics concerning the type of characters entered. In this lab we will use a while loop. We will read characters from stdin until we read the character 'Q' Example input mJ0*5/1+x1@3qcxQ The 'Q' should be included when computing the statistics properties of the input. Since characters are integers you will determine the average character (average when one looks at the character as an integer (its ASCII value). To achieve this you will need to compute the sum of the ASCII values of the characters. We are interested in determining the following statistics 1. The number of lowercase alphabetical characters 2. The member of even digits 09. 214.68 3. The total number of characters inpulled (include 4. The number of line feeds (ASCII value of 10)

Answer 1

You can save this as HomeworkLib.c

A well commented code for your understanding.

#include <stdio.h>

int main(){
    char str[1000]; // you can change the value of size as per demand
    printf("Enter the characters from the keyboard!:\n");
    scanf("%[^Q]s",str); // this will read until a Q is encountered 
    //Although all the parts can be done in a sinngle loop but i am explaining it part wise
    // lets find the length first part 3
    int i = 0;
    int length=0;
    while(str[i]!='\0'){
        length++;
        i++;
    }
    printf("\nTotal number of characters inputted including 'Q' %d",length+1);
    // part 1 
    i=0;
    int lower = 0;
    while (str[i] != '\0') {
        if (str[i] >= 'a' && str[i] <= 'z')
            lower++;
        i++;
    }
    printf("\nThe number of lowercase characters: %d",lower);
    //part 2
    i=0;
    int even = 0;
    while (str[i] != '\0') {
        if (str[i] >= '0' && str[i] <= '9')
            if(((str[i]-'0')%2)==0)
                even++;
        i++;
    }
    printf("\nThe number of even digits: %d",even);
    //part 4
    i=0;
    int linefeed = 0;
    while (str[i] != '\0') {
        if (str[i] ==10)
            linefeed++;
        i++;
    }
    printf("\nThe number of line feeds: %d",linefeed);
    // you can do all the four in one line by simply putting the if conditions in a single while
    
    return 0; 
}

// now you can run this using on Linux terminal using

gcc HomeworkLib.c 
./a.out

// you can run this using on Windows shell using

gcc HomeworkLib.c
.\a.exe

Output:

. PS C:\Users\risha OneDrive\Desktop\Codes> . \a.exe Enter the characters from the keyboard!: mJ&*5/1+x1@3qcxQ Total number of characters inputted including 'Q' 16 The number of lowercase characters: 6 The number of even digits: 1 The number of line feeds: 0 PS C:\Users\risha OneDrive\Desktop\Codes> . \a.exe Enter the characters from the keyboard! : mJ0*5/1+x1@3qcx х Q Total number of characters inputted including 'Q' 19 The number of lowercase characters: 7 The number of even digits: 1 The number of line feeds: 2 PS C:\Users\risha\OneDrive\Desktop\Codes>

Hope this helped you. Now you can solve all related problems.