Lec 33: Coding Exercise for Beginners with Solution | do-while loop in C++

In this lecture, We will discuss coding problems with Solutions on do-while Loop in C++

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[PRIYANSHUCHAKRABORTY-yvmq]

Mam maine Q1 ka ek aur solution nikala, by using if and break statement

#include <iostream>
using namespace std;
int main(){
int n=0, sum=0;
do{
cout<<"Enter a number:";
cin>>n;
if (n<0){
break;
}
sum=sum+n;
}while(n>0);
cout<<"The sum is:"<<sum;
}

Q2, I have solved it by switch case

#include <iostream>
using namespace std;
int main(){
char choice;

int a, b;

do{

cout<<"1. Addition"<<endl;
cout<<"2. Subtraction"<<endl;
cout<<"3. Multiplication"<<endl;
cout<<"4. Divison"<<endl;
cout<<"Q. Quit"<<endl;

cout<<"Enter your choice:";
cin>>choice;

switch(choice){
case '1':
cout<<"You chose 1....addition"<<endl;
cout<<"Enter two numbers seperated by a space:";
cin>>a;
cin>>b;
cout<<"Addition is:"<<a+b<<endl<<endl;
break;

case '2':
cout<<"You chose 2....subtraction"<<endl;
cout<<"Enter two numbers seperated by a space:";
cin>>a;
cin>>b;
cout<<"Subtraction is:"<<a-b<<endl<<endl;
break;

case '3':
cout<<"You chose 3....multiplication"<<endl;
cout<<"Enter two numbers seperated by a space:";
cin>>a;
cin>>b;
cout<<"Multiplication is:"<<a*b<<endl<<endl;
break;

case '4':
cout<<"You chose 4....division"<<endl;
cout<<"Enter two numbers seperated by a space:";
cin>>a;
cin>>b;
cout<<"Divison is:"<<a/b<<endl<<endl;
break;

case 'Q':
cout<<"Good Bye..."<<endl;
break;

case 'q':
cout<<"Good Bye..."<<endl;
break;

default:
cout<<"Wrong choice....Try again!!"<<endl<<endl;
}
}while(choice != 'Q' && choice!= 'q');
return 0;
}

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