# Print out all the Narcissus numbers between 100-999

Time：2020-1-14

Title: print out all the “narcissus number” between 100-999. The so-called “narcissus number” refers to a three digit number whose cubic sum of each digit is equal to the number itself. For example, 153 is a “narcissus number”, because the third power of 153 = 1 + 5 + 3.
1. Program analysis: use for loop to control 100-999 numbers. Each number is decomposed into bits, tens and hundreds.

``````class Program
{
static void Main(string[] args)
{
for (int num = 100; num <= 999; num++)
{
Int i = num% 10; // take a bit
Int j = (Num / 10)% 10; // take the tens
Int k = num / 100; // take the hundreds
if(i*i*i+j*j*j+k*k*k==num)
{
Console.WriteLine(num);
}
}
}
}``````

## RCAST 35: add type to currency

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