C Number pattern 13 program using For loop

Write "C"  program to print below Number pattern 13:

To understand this example, you should have knowledge of the following topics:
·     C if Else Statement
·     C For loop
·      C programming operators
C Number pattern 13 program using For loop:
#include <stdio.h>
int main()
{ int i,j,k; for(i=5;i>=1;i--) { if(i%2==1) k=1; else k=i; for(j=1;j<=i;j++) { printf("%d",k); if(i%2==1) k++; else k--; } printf("\n"); } return 0; }
Output:
12345
4321
123
21
1
Explanation:
  • First three integers "i", "j" and "k" are declared of type int.
  • Then in the First for loop “i” value is initialized with a value 5.
  • Now “i” value is checked with the condition i >= 1 that is (5 >= 1). So the condition is True.
  • Now the loop checks the if condition if the condition is True then loop enters into second for loop.
  • Now the loop enters into second for loop and checks the condition j <= i. Where "j = 1". and print the value of "k".
  • And check the if condition and continues up to program terminate.
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