number_pattern_v1.c

/*

    number_pattern_v1.c

    12345
    2345
    345
    45
    5


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

    https://pastebin.com/u/dmilicev

*/

#include <stdio.h>

void print_pattern_v1(int rows)
{
    int r,c,first_number=1; // r and c is for row and column

    for(r=0;r<rows;r++)
    {
        for(c=0;c<rows-r;c++)
            printf("%d",first_number+c);

        first_number++;
        printf("\n");
    }
}

void print_pattern_v2(int rows)
{
    int r,c;    // r and c is for row and column

    for(r=0;r<rows;r++)
    {
        for(c=0;c<rows-r;c++)
            printf("%d",r+1+c);

        printf("\n");
    }
}

void print_pattern_v3(int rows)
{
    int r,c;    // r and c is for row and column

    for(r=0;r<rows;r++)
    {
        for(c=0;c<rows;c++)
            if(c+1>r)
                printf("%d",c+1);

        printf("\n");
    }
}

void print_pattern_v4(int rows)
{
    int arr[]={1,2,3,4,5,6,7,8,9};
    int r,c;    // r and c is for row and column

    if( rows<1 || rows>9 )
    {
        printf("\n Rows must be between 1 and 9 \n");
        return;
    }

    for(r=0;r<rows;r++)
    {
        for(c=0;c<rows;c++)
            if(c+1>r)
                printf("%d",arr[c]);

        printf("\n");
    }
}


int main(void)
{
    printf("\n Version 1: \n\n");
    print_pattern_v1(5);

    printf("\n Version 2: \n\n");
    print_pattern_v2(5);

    printf("\n Version 3: \n\n");
    print_pattern_v3(5);

    printf("\n Version 4: \n\n");
    print_pattern_v4(5);


    return 0;

} // main()