10) Decimal to Binary
We can convert any decimal number (base-10 (0 to 9)) into binary number(base-2 (0 or 1)) by c++ program.
Decimal Number
Decimal number is a base 10 number because it ranges from 0 to 9, there are total 10 digits between 0 to 9. Any combination of digits is decimal number such as 23, 445, 132, 0, 2 etc.
Binary Number
Binary number is a base 2 number because it is either 0 or 1. Any combination of 0 and 1 is binary number such as 1001, 101, 11111, 101010 etc.
Let's see the some binary numbers for the decimal number.
Decimal to Binary Conversion Algorithm
-
Step 1: Divide the number by 2 through % (modulus operator) and store the remainder in array
-
Step 2: Divide the number by 2 through / (division operator)
-
Step 3: Repeat the step 2 until number is greater than 0
Let's see the c++ example to convert decimal to binary.
Write a c++ program to convert decimal number to binary.
Input: 5
Output: 101
Input: 20
Output: 10100
Let's see the c++ example to convert decimal to binary.
#include <iostream>
using namespace std;
int main()
{
int a[10], n, i;
cout<<"Enter the number to convert: ";
cin>>n;
for(i=0; n>0; i++)
{
a[i]=n%2;
n= n/2;
}
cout<<"Binary of the given number= ";
for(i=i-1 ;i>=0 ;i--)
{
cout<<a[i];
}
}
11) Alphabet Triangle
There are different triangles that can be printed. Triangles can be generated by alphabets or numbers. In this c++ program, we are going to print alphabet triangles.
Let's see the c++ example to print alphabet triangle.
Write a c++ program to print alphabet triangle.
Output:
A ABA ABCBA ABCDCBA ABCDEDCBA
#include <iostream>
using namespace std;
int main()
{
char ch='A';
int i, j, k, m;
for(i=1;i<=5;i++)
{
for(j=5;j>=i;j--)
cout<<" ";
for(k=1;k<=i;k++)
cout<<ch++;
ch--;
for(m=1;m<i;m++)
cout<<--ch;
cout<<"\n";
ch='A';
}
return 0;
}
12) Number Triangle
Like alphabet triangle, we can write the c++ program to print the number triangle. The number triangle can be printed in different ways.
Let's see the c++ example to print number triangle.
Write a c++ program to print number triangle.
Input: 7
Output:
enter the range= 6 1 121 12321 1234321 123454321 12345654321
#include <iostream>
using namespace std;
int main()
{
int i,j,k,l,n;
cout<<"Enter the Range=";
cin>>n;
for(i=1;i<=n;i++)
{
for(j=1;j<=n-i;j++)
{
cout<<" ";
}
for(k=1;k<=i;k++)
{
cout<<k;
}
for(l=i-1;l>=1;l--)
{
cout<<l;
}
cout<<"\n";
}
return 0;
}