Q:

Write a program to print the following pattern on the console

belongs to collection: Pattern Programs

robaa
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2022-11-09
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  140 
0

0

909

89098

7890987

678909876

56789098765

4567890987654

345678909876543

23456789098765432

1234567890987654321

Algorithm

  • STEP 1: START
  • STEP 2: SET lines=10
    SET i=1
  • STEP 3: REPEAT STEP 4 to 15 UNTIL i is less than or equals to lines
  • STEP 4: SET count =0
    SET j=1
  • STEP 5: REPEAT STEP 6 and 7 UNTIL j is less than lines
  • STEP 6: IF count is less than (i-1)
    IF j is not less than (lines-i+1)
    PRINT j AND INCREMENT count by 1
  • STEP 7: SET j=j+1
  • STEP 8: PRINT 0
  • STEP 9: SET count =0
  • STEP 10: DECREMENT j by 1
  • Step 11: REPEAT STEP 12 and 13 UNTIL j is greater than 0
  • STEP 12: IF count is less than (i-1)
    PRINT j AND INCREMENT count by 1
  • STEP 13: SET j = j - 1
  • STEP 14: PRINT new line
  • STEP 15: i = i + 1
  • STEP 16: EXIT
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All Answers

robaa
2022-11-09
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C Program:

#include <stdio.h>  
int main()  
{  
   int lines=10;  
   int i,j;  
   int count;  
   for(i=1;i<=lines;i++){// this loop is used to print lines  
       count=0;  
        for(j=1;j<lines;j++){// this loop is used to print numbers in a line  
            if(count<i-1){  
                if(!(j<lines-i+1)){  
                    printf("%d",j);  
                    count++;  
                }              
            }  
        }  
        printf("0");  
        count=0;  
        for(--j;j>=1;j--){// this loop is used to print j and increment count  
            if(count<i-1){  
            printf("%d",j);  
            count++;  
            }  
        }  
        printf("\n");  
   }  
    return 0;  
}

 

Output:

0 
909 
89098 
7890987 
678909876 
56789098765 
4567890987654 
345678909876543 
23456789098765432 
1234567890987654321

 

Java Program:

public class patter{  
     public static void main(String []args){  
         int lines=10;  
   int i,j;  
   int count;  
   for(i=1;i<=lines;i++){// this loop is used to print lines  
       count=0;  
        for(j=1;j<lines;j++){// this loop is used to print numbers in a line  
            if(count<i-1){  
                if(!(j<lines-i+1)){  
                    System.out.print(j);  
                    count++;  
                }  
            }  
        }  
        System.out.print("0");  
        count=0;  
        for(--j;j>=1;j--){// this loop is used to print j and increment count  
            if(count<i-1){  
            System.out.print(j);  
            count++;  
            }  
        }  
        System.out.println("");  
   }  
     }  
}

 

Output:

0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321

 

C# Program:

using System;                     
public class Program  
{  
    public static void Main()  
    {  
         int lines=10;  
   int i,j;  
   int count;  
   for(i=1;i<=lines;i++){// this loop is used to print lines  
       count=0;  
        for(j=1;j<lines;j++){// this loop is used to print numbers in a line  
            if(count<i-1){  
                if(!(j<lines-i+1)){  
                    Console.Write(j);  
                    count++;  
                }  
            }  
        }  
         Console.Write("0");  
        count=0;  
        for(--j;j>=1;j--){// this loop is used to print j and increment count  
              
            if(count<i-1){  
             Console.Write(j);  
            count++;  
            }  
        }  
         Console.WriteLine("");  
   }  
    }  
}

 

Output:

0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321

 

PHP Program:

$lines=10;  
$i;  
$j;  
$count;  
   for($i=1;$i<=$lines;$i++){// this loop is used to print lines  
       $count=0;  
        for($j=1;$j<$lines;$j++){// this loop is used to print numbers in line  
            if($count<$i-1){  
                if(!($j<$lines-$i+1)){  
                    echo $j;  
                    $count++;  
                }  
              
            }  
        }  
       echo '0';  
        $count=0;  
        for(--$j;$j>=1;$j--){//this loop is used to print j and increment count  
              
            if($count<$i-1){  
            echo $j;  
            $count++;  
            }  
        }  
        echo "<br>";  
   }

 

Output:

0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321

 

Python Program:

lines=10  
i=1  
j=1  
count=0  
while i<=lines:  #this loop is used to print lines  
      
    count=0  
    j=1  
    while j<lines:   # this loop is used to priont numbers in a line  
        if count<i-1:  
            if j<lines-i+1:  
                count=count  
            else :  
                print(j, end='', flush=True)  
                count=count+1  
        j=j+1  
    print("0", end='', flush=True)  
    count=0  
    j=j-1  
    while j>=1:  #this loop is used to print j and increment count  
        if count<i-1:  
            print(j, end='', flush=True)  
            count=count+1  
        j=j-1  
    print("")  
    i=i+1

 

 

Output:

0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321

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