Number Magic2 Using For loop #c

The Output look like this

1
2 3
4 5 6
7 8 9 10

//Lets start the program

#include<stdio.h>

#include<conio.h>

void main()
{
int j,k,b=31,c;

clrscr();

for(c=9;c>=1;c=c-1,b=b+1)

   {printf("\n");

    for(j=1;j<=b;j++)

    printf(" ");

    for(k=1;k<=c;k++)

    printf("%d ",c);

    }
    getch();
    }



Lets Start Next Program. The Out Will look like this.
                                                   1
                                                 2  3
                                               4  5  6
                                             7  8  9  10

//Lets Start the program.

#include<stdio.h>

#include<conio.h>

void main()
{
int i,j,k,a=40;

clrscr();

for(i=1;i<=9;i++,a=a-1)

   {printf("\n");

    for(j=1;j<=a;j++)

    printf(" ");

    for(k=1;k<=i;k++)

    printf("%d ",i);
    }
    getch();
    }


Let's Start Next Program. The Out Will look like this.
                                                   1
                                                 2  2
                                               3  3  3
                                             4  4   4  4
                                             1  1   1  1
                                             2  2   2  2
                                             3  3   3  3
                                             4  4   4  4

//Lets Start the program.

#include<stdio.h>

#include<conio.h>

void main()
{
int i,j,k,a=40,b=31,c;

clrscr();

for(i=1;i<=9;i++,a=a-1)

   {printf("\n");

    for(j=1;j<=a;j++)

    printf(" ");

    for(k=1;k<=i;k++)

    printf("%d ",i);
    }
for(c=9;c>=1;c=c-1)

   {printf("\n");

    for(j=1;j<=b;j++)

    printf(" ");

    for(k=1;k<=10;k++)

    printf("%d ",c);
    }
    getch();
    }

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