5.Inverted Triangle

             

I have added numbers to make you understand how we will create this pattern using for loop

• As we know we first see how many lines of code needs to be printed, in this case it is 9
• Since we will take user input it can be simply n which will be taken from user
• For the inner loop we will look how many times the stars are printing
• If we observe carefully we can see that for each line 
• Stars are printing from i to n
• For i=1 , the stars are printing from 1to n i.e 9 from our example
• For i=4 , the stars are printing from 4 to n i.e 6  from our example
• So for the inner loop j will iterate from i to n
• Remember to print "\n" to make it move to next line

Code

#include<stdio.h>

#include<conio.h>

void main(){

int i,j,n;

clrscr();

printf("Enter number of lines ");

scanf("%d",&n);

for(i=1;i<=n;i++)

    {

          for(j=i;j<=n;j++)

               {

                 printf("*");   

                   }

           printf("\n");

     }

getch();

}

Note: scanf is used for taking user input