pattern

Example : 1

#include<iostream>
using namespace std;

int main()
{
    for(int j =1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    return 0;
}

Output :

* * * * *

Explanation :

In a Line no 6 start for loop for(int j =1; j<=5; j++) initialise j variable and store value 1, check condition j<=5 and increse value by one.
Print * using cout and space.

Example : 2

#include<iostream>
using namespace std;

int main()
{
    for(int j=1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    cout<<endl;

    for(int j=1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    cout<<endl;

    for(int j=1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    cout<<endl;

    for(int j=1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    cout<<endl;

    for(int j=1; j<=5; j++)
    {
        cout<<"*"<<' ';
    }

    cout<<endl;

    return 0;
}

Output :

* * * * *
> * * * * *
> * * * * *
> * * * * *
> * * * * *

Explanation :

In a Line no 6 start for loop for(int j =1; j<=5; j++) initialise j variable and store value 1, check condition j<=5 and increse value by one.
Print * using cout and space.
In a Line no 13, 20, 27, 34 same as line no 6.

Example : 3

#include<iostream>
using namespace std;

int main()
{
    for(int j =1; j<=5; j++)
    {
        for(int i=1; i<=5; i++)
        {
            cout<<"*"<<' ';
        }

            cout<<endl;
    }

    return 0;
}

Output :

* * * * *
* * * * *
* * * * *
* * * * *
* * * * *

Explanation :

In a Line no 6 start for loop for(int j =1; j<=5; j++) initialise j variable and store value 1, check condition j<=5 and increse value by one.
In a Line no 8 start for loop for(int i=1; i<=5; i++) initialise i variable and store value 1, check condition i<=5 and increse value by one.
Print * using cout and space.
use endl for new line

Example : 4

#include<iostream>
using namespace std;

int main()
{
    for(int row=0; row<=5; row++)
    {
        for(int col=1; col<=row; col++)
        {
            cout<<"*"<<' ';
        }

            cout<<endl;
    }

    return 0;
}

Output :

*
* *
* * *
* * * *
* * * * *

Explanation :

In a Line no 6 start for loop for(int row =1; row<=5; row++) initialise row variable and store value 1, check condition row<=5 and increse value by one.
In a Line no 8 start for loop for(int col=1; col<=row; col++) initialise col variable and store value 1, check condition col<=row and increse value by one.
Print * using cout and space.
use endl for new line

WAP to calculate sum of 5 subjects and their percentage and print grade. Hint 💡:

If percentage >=90 then Grade is A
If percentage >=80 then Grade is B
If percentage >=70 then Grade is C
If percentage >60 then Grade is D
If percentage <60 then Grade is fail.

#include<iostream>
using namespace std;

int main()
{
   int mar, math, hindi, sci, eng, sum;
   float percent;

   cout<<"Enter Marathi Marks : ";
   cin>>mar;

   cout<<"Enter Math Marks : ";
   cin>>math;

   cout<<"Enter Hindi Marks : ";
   cin>>hindi;

   cout<<"Enter Science Marks : ";
   cin>>sci;

   cout<<"Enter English Marks : ";
   cin>>eng;

   sum =  mar + math + hindi + sci + eng;
   cout<<"Sum of marks : "<<sum<<endl;

   percent = sum / 5;
   cout<<"Percentage : "<<percent<<"%"<<endl;

   if(percent >= 90)
   {
       cout<<"Grade is A";
   }
   else if(percent >= 80)
   {
       cout<<"Grade is B";
   }
   else if(percent >= 70)
   {
       cout<<"Grade is C";
   }
    else if(percent >= 60)
   {
       cout<<"Grade is D";
   }
    else
   {
       cout<<" Fail ";
   }

    return 0;
}

Output :

Enter Marathi Marks : 87
Enter Math Marks : 98
Enter Hindi Marks : 87
Enter Science Marks : 81
Enter English Marks : 67
Sum of marks : 420
Percentage : 84%
Grade is B