Write a c++ code

How to calculate the value of resistor?

At the beginning of the code I need to ask the user if the circuit have resistor , If say yes continue with the program if say no we cant continue . I need to force the user to say yes . At the end of the code I need to ask the user if need to find another value if say yes start again If say no close the program.

~~Picture related values of band~~

Example: Band 1 = Red, Band 2 = Violet, Band 3 = Orange, Band 4 = Gold Too many zeros?

The value of this resistor would be: kilo ohms and mega

2 (Red) 7 (Violet) x1,000 (Orange) = 27 x 1,000 ohms can be used:

= 27,000 with a 5% tolerance (gold) 1,000 ohms =1k

= 27k ohms

COLOR 1 BAND 2 BAND 3RD BAND MULTIPLIER TOLERANCE 10 100 10 100 10 100 4 5 6 4 Green :05% to 25% +010% 0 05% (D) (C) (B) 6 Violet Grev White 8 9 t5% ( ) t 10% (K) 01 0010 0.1%, 0.25%, 0.5%, 1% 237 1% 5-Band-Code