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#include<iostream.h> int main() { int first_number,second_number,gcd,i; cout<<"Enter First Number : "; cin>>first_number; cout<<"Enter Second Number: "; cin>>second_number; for(i=1;i<=first_number&&i<=second_number;i++) {      if(first_number%i==0 && second_number%i == 0 ) {                      gcd=i;     } } cout<<"Greatest Common Division (GCD):"<<gcd<<endl; return 0; } ******Output****** Enter First Number: 9 Enter Second Number: 24 Greatest Common Division (GCD):3  What is GCD of two numbers?  It means a greatest number which divides both numbers For example: Two numbers are 9 and 24 Numbers which divides both are 1 and 3 in which greatest number is 3 So 3 is the GCD of 9 and 24 Click here for more programs on C++

# include <iostream.h> int main() { int age,heartbeats; cout<<"Enter Age: "; cin>>age; cout<<"Enter Number of Heartbeats per min: "; cin>>heartbeats; heartbeats = heartbeats * 60; //heartbeats per hour heartbeats = heartbeats * 24; //heartbeats per day heartbeats = heartbeats * 365; //heartbeats per year cout<<"Your Heart has beat "<<heartbeats * age<<" times since you were born."<<endl; return 0; } -----------------------OUTPUT---------------------  Enter Age: 26  Enter Number of Heartbeats per min: 70  Your Heart has beat  956592000  times since you were born.