Programming language_01(CS)

1.Question: Write a program using loop control to produce the following output
A B C D E F G
A B C D E F
A B C D E
A B C D
A B C
A B
A

solution:

#include < stdio.h >
int main()
{
    int i,j,n=9,k=9;
    char c='A';
    for(i=1 ; i<=n ; i++)
    {
        for(j=k ; j>=1 ; j--)
        {
            printf("%c" , c++);
        }
        printf("\n");
        c='A';

        k--;
    }
    return 0;
}

2.Question:

 Write a program using loop control to produce the following output
*
**
***
****
*****

solution:

#include < stdio.h >
int main()
{
int i,j,k,n;

printf("\n Enter no. of rows:");
scanf("%d",&n);

for(i=1;i<=n;i++)
   {for(j=1;j<=(n-i);j++)
        {printf(" ");
        }
     for(k=1;k<=i;k++)
        {printf("*");
        }
     printf("\n");


     }
return 0;
}

3.Question:

 Write a program using loop control to produce the following output

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

******

*****

****

***

**

* 

solution:

#include < stdio.h >
int main(){
int i,j;
for(i=1;i<=6;i++){
for(j=1;jprintf("*");
}
printf("\n");
}
for(i=6;i>=1;i--){
for(j=1;j<=i;j++){
printf("*");
}
printf("\n");
}
    return 0;
}