C QEUSTION Exercise 1 Write a program that print out the fir

C++ QEUSTION!!!

Exercise 1

Write a program that print out the first N lines of following pattern:

#

##

###

####

#####

……

The first line includes 1 pound sign;

The second line includes 2 pound signs;

The third line includes 3 pound signs;

……

Exercise 2

Ask a user to input a positive integer number and calculate the sum of the digits.

For example: number = 245, the sum of the digits = 2 + 4 + 5 = 11

Solution

1)
#include <iostream>
using namespace std;

int main()
{
   int n;
   cout<<\"Enter a positive number:\";
   cin>>n;
   for(int i=1;i<=n;i++)
   {
       for(int j=0;j<i;j++)
       {
           cout<<\'#\';
       }
       cout<<endl;
   }
  
   return 0;
}
2)

#include <iostream>
using namespace std;

int main()
{
   int n;
   cout<<\"Enter a number:\";
   cin>>n;
   int sum=0;
   while(n>0)
   {
       sum = sum + n%10;
       n = n/10;
   }
   cout<<sum<<endl;
   return 0;
}