Question

SWITCH CASE, WHILE, DO WHILE STRUCTURES

Implement the following programs, attach a flow chart, and photos of its operation.
1. Read a number that represents the month and say what months it is.
2. Using the conditional "while" calculate the factorial of a number
3. Using the “do-while” conditional, make a program that prints all numbers from 1 up to a maximum number entered by the user.

Answer 1

PROGRAM 1:

#include <stdio.h>
int main()
{
   int mon_num;
   printf("Input Month No : ");
   scanf("%d",&mon_num);
   switch(mon_num)
   {
        case 1:
               printf("January\n");
               break;
        case 2:
               printf("February\n");
               break;
        case 3:
               printf("March\n");
               break;
        case 4:
               printf("April\n");
               break;
        case 5:
               printf("May\n");
               break;
        case 6:
               printf("June\n");
               break;
        case 7:
               printf("July\n");
               break;
        case 8:
               printf("August\n");
               break;
        case 9:
               printf("September\n");
               break;
        case 10:
               printf("October\n");
               break;
        case 11:
               printf("November\n");
               break;
        case 12:
               printf("December\n");
               break;
        default:
               printf("invalid Month number. \nPlease try again ....\n");
               break;
      }
      return 0;
}

OUTPUT:

FLOWCHART:

PROGRAM 2:

#include <iostream>
using namespace std;

int main() {
        int num;
        cout<<"\n ENTER A NUMBER:";
        cin>>num;
        int fact = 1;
        while(num>1)
        {
            fact=fact*num;
            num--;
        }
        cout<<"\nFACTORIAL = "<<fact;
        return 0;
}

OUTPUT:

FLOWCHART:

PROGRAM 3:

#include <iostream>
using namespace std;

int main() {
        int n;
        cout<<"\nEnter how many numbers you want to enter:";
        cin>>n;
        int arr[n];
        
        int max = -99999;
        int i = 0;
        do{
            cout<<"\nENTER NUMBER "<<i+1<<" :";
            cin>>arr[i];
            if(arr[i] > max)
            {
                max=arr[i];
            }
            i++;
        }while(i!=n);
        cout<<"\nLarger numbber = "<<max;;
        return 0;
}

OUTPUT:

FLOWCHART

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