Question

Write a menu-driven program to read a list of students’ surnames and perform the following: a) Print the initial list of surnames b) Sort the surnames in ascending order and print the sorted list c) Sort the surnames in descending order and print the sorted list. using c programing and write its flow chat.through user input.

Answer 1

#include <stdio.h>
#include <string.h>

#define MAX 50

void printList(char surname[MAX][20], int size){
    int i;
    printf("Surnames:\n");
    for(i = 0; i < size; i++){
        printf("%s\n", surname[i]);
    }
}

void sortAscendingOrder(char surname[MAX][20], int size){
    int i, j;
    for(i = 0; i < size; i++){
        for(j = 0; j < size - 1; j++){
            if(strcmp(surname[j], surname[j + 1]) > 0){
                char temp[20];
                //Swap adjacent surnames
                strcpy(temp, surname[j]);
                strcpy(surname[j], surname[j + 1]);
                strcpy(surname[j + 1], temp);
            }
        }
    }
}

void sortDescendingOrder(char surname[MAX][20], int size){
    int i, j;
    for(i = 0; i < size; i++){
        for(j = 0; j < size - 1; j++){
            if(strcmp(surname[j], surname[j + 1]) < 0){
                char temp[20];
                //Swap adjacent surnames
                strcpy(temp, surname[j]);
                strcpy(surname[j], surname[j + 1]);
                strcpy(surname[j + 1], temp);
            }
        }
    }
}

int main(){
    char surname[MAX][20];//Array to hold list of surnames
    int size, option;
    printf("How many surnames do you want to enter? ");
    scanf("%d", &size);
    while(size < 1 || size > MAX){
        printf("Enter between 1 - %d: ", MAX);
        scanf("%d", &size);
    }
    fflush(stdin);
    int i;
    for(i = 0; i < size; i++){
        printf("Enter surname: ");
        scanf("%s", surname[i]);
    }
    do{
        printf("MENU\n");
        printf("1. Print list\n");
        printf("2. Sort list in ascending order\n");
        printf("3. Sort list in descending order\n");
        printf("4. Exit");
        printf("Select: ");
        scanf("%d", &option);
        switch(option){
            case 1:
            {
                printList(surname, size);
                break;
            }

            case 2:
            {
                sortAscendingOrder(surname, size);
                break;
            }

            case 3:
            {
                sortDescendingOrder(surname, size);
                break;
            }

            case 4:
            {
                break;
            }

            default:
            {
                printf("Invalid option selected. Try again\n");
            }
        }
    }while(option != 4);
    return 0;
}

SAMPLE OUTPUT:

FLOWCHART: