number_pattern_pyramid.c

/*

    number_pattern_pyramid.c


    You can find all my C programs at Dragan Milicev's pastebin:

    https://pastebin.com/u/dmilicev

*/


#include <stdio.h>
#include <stdlib.h>                 // for abs()

/*

- - - *-

- - *-*-*-

- *-*-*-*-*-

*-*-*-*-*-*-*-

row     ns      nc      n = 4
 0       3       1
 1       2       3
 2       1       5
 3       0       7

 ns = n-row-1;
 nc = 2*row+1;

*/
void pyramid_of_char_v1(int n)
{
    int i, row, ns, nc;             // ns number of spaces, nc number of chars

    for (row=0; row<n; row++)       // print rows one by one row
    {
        ns = n-row-1;               // calculate ns number of spaces
        nc = 2*row+1;               // calculate nc number of chars

        for (i=0; i<ns; i++)        // print ns spaces " "
            printf("- ");

        for (i=0; i<nc; i++)        // print nc "%d "
            printf("*-");

        printf("\n\n");             // print new row
    }
}

/*

- - - 1-

- - 2-1-2-

- 3-2-1-2-3-

4-3-2-1-2-3-4-

*/
void pyramid_of_numbers_v1(int n)
{
    int i, row, ns, nc, num;        // ns number of spaces, nc number of chars

    for (row=0; row<n; row++)       // print rows one by one row
    {
        ns = n-row-1;               // calculate ns number of spaces
        nc = 2*row+1;               // calculate nc number of chars
        num = -(row+2);             // calculate number

        for (i=0; i<ns; i++)        // print ns spaces " "
            printf("- ");

        for (i=0; i<nc; i++)        // print nc "%d "
        {
            num++;
            if(num==0)
                num=2;

            printf("%d-", abs(num) );
        }

        printf("\n\n");             // print new row
    }
}

/*

---*
--***
-*****
*******

row     ns      nc      n = 4
 0       3       1
 1       2       3
 2       1       5
 3       0       7

 ns = n-row-1;
 nc = 2*row+1;

*/
void pyramid_of_char_v2(int n)
{
    int i, row, ns, nc;             // ns number of spaces, nc number of chars

    for (row=0; row<n; row++)       // print rows one by one row
    {
        ns = n-row-1;               // calculate ns number of spaces
        nc = 2*row+1;               // calculate nc number of chars

        for (i=0; i<ns; i++)        // print ns spaces " "
            printf("-");

        for (i=0; i<nc; i++)        // print nc "*"
            printf("*");

        printf("\n\n");             // print new row
    }
}

/*

   1
  212
 32123
4321234

*/
void pyramid_of_numbers_v2(int n)
{
    int i, row, ns, nc, num;        // ns number of spaces, nc number of chars

    for (row=0; row<n; row++)       // print rows one by one row
    {
        ns = n-row-1;               // calculate ns number of spaces
        nc = 2*row+1;               // calculate nc number of chars
        num = -(row+2);             // calculate number

        for (i=0; i<ns; i++)        // print ns spaces " "
            printf("-");

        for (i=0; i<nc; i++)        // print nc "%d"
        {
            num++;
            if(num==0)
                num=2;

            printf("%d", abs(num) );
        }

        printf("\n\n");             // print new row
    }
}

int main(void)
{
    int n = 5;                      // number of rows

    printf("\n\t\t pyramid_of_char_v1() \n\n");
    pyramid_of_char_v1(n);
    printf("\n");

    printf("\n\t\t pyramid_of_numbers_v1() \n\n");
    pyramid_of_numbers_v1(n);
    printf("\n");


    printf("\n\t\t pyramid_of_char_v2() \n\n");
    pyramid_of_char_v2(n);
    printf("\n");

    printf("\n\t\t pyramid_of_numbers_v2() \n\n");
    pyramid_of_numbers_v2(n);
    printf("\n");

    return(0);
}