C Program to display the numbers in X pattern

Refer an algorithm given below for the C program to display the numbers in X pattern.

Algorithm

Step 1: Start
Step 2: Declare variables
Step 3: Read number of rows
Step 4: for loop satisfies

• if(i==j || i+j==rows-1)
  • print i+1
• Print " "

The logic to print numbers in X pattern is as follows −

for(i=0;i");
}

Program

Following is the C program to display the numbers in X pattern −

#include
main(){
   int i,j,rows;
   printf("Enter number of rows:
");
   scanf("%d",&rows);
   for(i=0;i");
   }
}

Output

When the above program is executed, it produces the following result −

Enter number  of rows:10
1           1
  2        2
    3    3
      4 4
       55
       66
      7 7
    8     8
  9        9
10          10