In this tutorial, we will discuss a concept of Reverse order number pattern in Cpp 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 for loop in Cpp language.
Pattern 1
Reverse order number pattern program 1
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;//variable declaration
cout<<"Enter the number of rows: ";
cin>>rows;//Take input the number of rows from user
cout<<"\n";
for(i=1; i<=rows; i++){
for(j=i; j>=1; j--){
cout<<j;//Display pattern
}
cout<<"\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: 8 1 21 321 4321 54321 654321 7654321 87654321
Program 2
Reverse order number pattern program 2
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;//variable declaration
cout<<"Enter the number of rows: ";
cin>>rows;//Take input the number of rows from user
for( i=rows; i>=1; i--){
for( j=rows; j>=i; j--){
cout<<j<<" ";
}
cout<<"\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: 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 !
Pattern 3
Reverse order number pattern program 3
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;//variable declaration
cout<<"Enter the number of rows: ";
cin>>rows;//Take input the number of rows from user
for(i=rows; i>=1; i--){//outer loop
for(j=i; j>=1; j--){//inner loop
cout<<i<<" ";
}
cout<<"\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: 7 7 7 7 7 7 7 7 6 6 6 6 6 6 5 5 5 5 5 4 4 4 4 3 3 3 2 2 1
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