Pyramid using c

#include <stdio.h>

int main(){
    int i,j,n,;//declaring variables

    /*
    At first half pyramid
    *
    **
    ***
    ****
    *****
    ******
    *******
    ********
    */
    printf("Enter rows: \n");
    scanf("%d",&n);

    printf("half pyramid\n\n");
    for(i=0;i<n;i++){ //loop for making rows
        for(j=0;j<i;j++){ //loop for making stars. Here "i" is row number and n is total row number. so for making 1 star after 1 star you've to put variable "i"
            printf("* ");
        }
        //printing new line
        printf("\n");
    }

    printf("\n\n");





    /*
    making full pyramids

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

    */
    printf("full pyramid\n\n");
    //the first loop is for printing rows
    for(i=1;i<=n;i++){
        //loop for calculating spaces
        for(j=1;j<=(n-i);j++){ //to calculate spaces I use totalRows-rowNo formula
            printf(" ");
        }

        //loop for calculating stars
        for(j=1;j<=((2*i)-1);j++){ //using the formula "2n-1"
            printf("*");
        }
        //printing a new line
        printf("\n");
    }





    return 0;


}

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