Assignment 1.2: Variable, Operator & Expression Set II SOLUTIONS

1	Write a program to swap value of two variables without using third variable.  #include<iostream.h> #include<conio.h> int main() { int a,b; cout<<"\nEnter two numbers : "; cin>>a>>b; a=a+b; b=a-b; a=a-b; cout<<"\nAfter swapping numbers are : "; cout<<a<<" "<<b; getch(); return 0; }
2	Write a program which input three numbers and display the largest number using ternary operator.  #include <iostream.h> #include <conio.h> int main() { int a,b,c,greatest; cout<<"Enter three numbers : "; cin>>a>>b>>c; greatest=(a>b&&a>c)?a:(b>c)?b : c; cout<<"Greatest number is "<<greatest; getch(); return 0; }
3	Write a program which accepts amount as integer and display total number of Notes of Rs. 500, 100, 50, 20, 10, 5 and 1. For example, when user enter a number, 575, the results would be like this... 500: 1 100: 0 50: 1 20: 1 10: 0 5: 1 1: 0  #include<iostream.h> #include<conio.h> int main() { int amt,R500,R100,R50,R20,R10,R5,R1; cout<<"Enter amount : "; cin>>amt; R500=amt/500; amt=amt%500; R100=amt/100; amt=amt%100; R50=amt/50; amt=amt%50; R20=amt/20; amt=amt%20; R10=amt/10; amt=amt%10; R5=amt/5; amt=amt%5; R1=amt; cout<<"Rs.500 : "<<R500<<"\nRs.100 : "<<R100<<"\nRs. 50 : "<<R50<< "\nRs. 20 : "<<R20<<"\nRs. 10 : "<<R10<<"\nRs. 5 : "<<R5<<"\nRe. 1 : "<<R1; getch(); return 0; }
4	Write a program which accepts a character and display its next character.  #include<iostream.h> #include<conio.h> int main() { char ch; cout<< "\nEnter any character : "; cin>>ch; ch++; cout<<"Next character is : "<<ch; getch(); return 0; }
5	Write a program which accepts days as integer and display total number of years, months and days in it. for example :  If user input as 856 days the output should be 2 years 4 months 6 days.  #include<iostream.h> #include<conio.h> int main() { int days,y,m,d; cout<<"Enter no. of days : "; cin>>days; y=days/365; days=days%365; m=days/30; d=days%30; cout<<"Years : "<<y<<"\nMonths : "<<m<<"\nDays : "<<d; getch(); return 0; }