Reverse order number pattern in C using for loop
In this tutorial, we will discuss a concept of Reverse order number pattern in C using for loop
In C language, we can use for loop, while loop, do-while loop to display various number, star, alphabet and binary number patterns
In this topic, we demonstrate how to display some reversed number patterns using the nested while loop in C language.
Pattern 1
Reverse order number pattern program 1
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;//variable declaration
printf("Enter the number of rows: ");
scanf("%d",&rows);//get input from user
for(i=rows; i>=1; i--){//outer for loop
for(j=i; j>=1; j--){//inner for loop
printf("%d",i);//print pattern
}
printf("\n");//move to next line
}
getch();
return 0;
}
When the above code is compiled and executed, it produces the following results
Enter the number of rows: 6 666666 55555 4444 333 22 1
Pattern 2
Reverse order number pattern program 2
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;//variable declaration
printf("Enter the number of rows:\n ");
scanf("%d",&rows);
printf("\n");//takes input from user
for(i=1; i<=rows; i++){
for(j=i; j>=1; j--){
printf("%d",j);//display pattern
}
printf("\n");//move to next line
}
getch();
return 0;
}
When the above code is compiled and executed, it produces the following results
Enter te number of rows: 8 1 21 321 4321 54321 654321 7654321 87654321
Pattern 3
Reverse order number pattern program 3
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;//variable declaration
printf("Enter the number of rows: ");
scanf("%d",&rows);//takes input from user
for( i=rows; i>=1; i--){
for( j=rows; j>=i; j--){
printf("%d",j);
printf(" ");
}
printf("\n");Move to next line
}
return 0;
}
When the above code is compiled and executed, it produces the following results
Enter the number of rows: 8 8 8 7 8 7 6 8 7 6 5 8 7 6 5 4 8 7 6 5 4 3 8 7 6 5 4 3 2 8 7 6 5 4 3 2 1
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