# Write a program to print following pattern

1

21

321

4321

54321

# Program code

#include <stdio.h>

int main()
{
    int i, j;
    for(i=1;i<=5;i++)
    {
        for(j=i;j>=1;j--)
        {
            printf("%d",j);
        }
        printf("\n");
    }

    return 0;
}

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# Step by Step solution

Number of row

Is has 5 row , so first loop will execute for 5 time

#include <stdio.h>
int main()

{

    int i, j;

    for(i=1;i<=5;i++)
    
{......
 }



    return 0;

}

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Number of character

It has only one type of character , so there will be only one nested loop

#include <stdio.h>
int main()

{

......
 for(j=i;j>=1;j--)
        {
            printf("%d",j);
        }
        printf("\n");
}

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Number of column

It has 5 maximum column and is decreasing with row number , so the nested loop decrease it's repetation with increase in row

#include <stdio.h>

............
      for(j=i;j>=1;j--)
        {
            printf("%d",j);
        }
        printf("\n");
...................


    return 0;

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