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Commit fd1b70c

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1 parent a75a00d commit fd1b70c

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#include<iostream>
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using namespace std;
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int main()
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{
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int n,no=1;
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cout<<"Enter how many numbers cube you want: "<<endl;
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cin>>n;
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while(no<=n)
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{
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cout<<"Cube of "<<no<<" = "<<no*no*no<<endl;
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no++;
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}
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return 0;
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}
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#include<iostream>
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using namespace std;
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int main()
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{
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long long int n,no=2;
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cout<<"From 2 to how many numbers do you want even numbers : "<<endl;
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cin>>n;
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cout<<"List of even numbers from 2 to "<<n<<" :";
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while(no<=n)
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{
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cout<<no<<endl;
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no=no+2;
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}
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return 0;
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}
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#include<iostream>
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using namespace std;
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int main()
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{
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long long int a,b,c,n;
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a=0; b=1;
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cout<<"Enter number of terms (n) = ";
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cin>>n;
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cout<<"Fibonacci series is "<<endl;
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if(n==1){
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cout<<"0 ";
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}else if(n==2){
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cout<<a<<" "<<b<<" ";
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}else{
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cout<<a<<" "<<b<<" ";
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long int count=3;
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while(count<=n)
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{
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c=a+b;
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cout<<c<<" ";
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a=b;
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b=c;
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count++;
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}
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}
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return 0;
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}

‎Practise Programs/13palindromewhile.cpp

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#include<iostream>
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using namespace std;
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int main()
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{
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long int num,z,rev=0,rem;
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cout<<"Enter a number = "<<endl;
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cin>>num;
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z=num;
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while(num>0)
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{
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rem=num%10;
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num=num/10;
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rev=(rev*10)+rem;
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}
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if(rev==z){
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cout<<"Given number is Palindrome";
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}else{
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cout<<"Given number is not Palindrome";
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}
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return 0;
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}
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#include<iostream>
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#include<iomanip>
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using namespace std;
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int main()
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{
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long long int num,i=1,prod;
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cout<<"Enter number who's table you want : "<<endl;
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cin>>num;
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cout<<"Table of "<<num<<" :0"<<endl;
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do{
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prod = num * i;
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cout<<num<<" X "<<setw(2)<<i<<" = "<<prod<<endl;
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i = i+1;
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}while(i<=10);
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cout<<"End of table";
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return 0;
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}

‎Practise Programs/15averageforloop.cpp

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#include<iostream>
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using namespace std;
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int main()
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{
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int n;
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long int num,sum=0;
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cout<<"Enter how many number of terms you want to enter: "<<endl;
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cin>>n;
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cout<<"Enter numbers now :"<<endl;
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for(int i=0; i<n; i++)
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{
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cin>>num;
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sum = sum + num;
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}
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float avg = float(sum)/n;
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cout<<"Average = "<<avg<<endl;
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return 0;
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}
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#include<iostream>
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#include<math.h>
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using namespace std;
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int main()
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{
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int n;
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float x, sum=0.0;
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cout<<"Enter how many terms : "<<endl;
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cin>>n;
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cout<<"Enter the value of x : "<<endl;
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cin>>x;
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float z=x/(x+1);
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for(int i=1;i<=n;i++)
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{
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sum=sum+pow(z,i)*1/i;
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}
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cout<<"Sum of Series = "<<sum;
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return 0;
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}
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//You can see explanation of program in last of the program see its important
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#include<iostream>
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using namespace std;
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int main()
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{
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int n;
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cout<<"Enter how many lines : ";
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cin>>n;
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for(int i=1;i<=n;i++)
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{
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for(int j=1;j<=i;j++)
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{
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cout<<i<<" "; // if you print j here then series will be 1\n 1 2\n 1 2 3\n 1 2 3 4 like this
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}
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cout<<endl;
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}
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return 0;
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}
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/*
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On execution we input ythe number of lines n (say 4).
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In this program the inner j loop is nested inside the outer i loop.
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For each value of variable i of outer loop, the inner loop will be executed completely.
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For 1st iteration of outer loop, the inner loop will be executed completely.
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For 1st iteration of outer loop, the i is initialized to 1 and inner loop is executed once as the condition (j<=i) ,
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is satisfied only once, thus prints the value of i (i.e. 1) once.
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the statement cout<<"\n" must be outside the inner loop and inside the outer loop in order to produce exactly one
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line for each iteration of outer loop.
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On second iteration(pass) of outer loop, when i=2 then inner loop executes 2 times and thus displaying value of i (i.e 2)
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2 times and process will continue until the condition in the loop becomes false.
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*/
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//You can see the use of break statement also here
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#include<iostream>
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using namespace std;
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int main()
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{
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long long int a,b,operation;
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cout<<"Enter two numbers :"<<endl;;
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cin>>a>>b;
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cout<<"1. Addition"<<endl;
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cout<<"2. Subtraction"<<endl;
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cout<<"3. Multiplication"<<endl;
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cout<<"4. Division"<<endl;
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cout<<"5. Modulus"<<endl;
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cout<<"Select appropriate number for appropriate operation :"<<endl;
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int choice;
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cin>>choice;
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switch(choice)
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{
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case 1:
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operation=a+b;
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cout<<" Addition = "<<operation;
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break;
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case 2:
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operation=a-b;
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cout<<" Subtraction = "<<operation;
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break;
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case 3:
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operation=a*b;
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cout<<" Multiplication = "<<operation;
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break;
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case 4:
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operation=a/b;
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cout<<" Division = "<<operation;
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break;
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case 5:
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operation=a%b;
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cout<<" Modulus = "<<operation;
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break;
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default:
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cout<<"Invalid Choice";
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}
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return 0;
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}
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#include<iostream>
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using namespace std;
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int main()
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{
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int a,b;
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char ch;
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do{
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cout<<"Enter Divident"<<endl;
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cin>>a;
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cout<<"Enter Divisor"<<endl;
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cin>>b;
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if(b==0)
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{
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cout<<"Illegal Divisor"<<endl;
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continue;
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}
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cout<<"Quotient =\t"<<a/b<<endl;
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cout<<"Remainder =\t"<<a%b<<endl;
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cout<<"Want to Continue ? (y/n):";
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cin>>ch;
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} while(ch=='Y' || ch=='y');
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return 0;
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}

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