Fascinating Number ISC Computer Science 2021 Practical
A Fascinating number is one which when multiplied by 2 and 3 and then, after the results are concatenated with the original number, the new number contains all the digits from 1 to 9 exactly once. There can be any number of zeroes and are to be ignored. Example : 273 273 × 1 = 273 273 × 2 = 546 273 × 3 = 819 Concatenating the result we get, 273546819 which contains all digits from 1 to 9 exactly once. Thus, 273 is a Fascinating number. Accept two positive integers m and n, where m must be less than n and the values of both 'm' and 'n' must be greater than 99 and less than 10000 as user input. Display all fascinating numbers that are in the range between m and n (both inclusive) and output them along with the frequency, in the format given below: Example 1 : INPUT: m = 100 n = 500 OUTPUT: THE FASCINATING NUMBERS ARE: 192 219 273 327 FREQUENCY OF FASCINATING NUMBERS IS: 4 Example 2 : INPUT: m = 900 n = 5000 OUTPUT: THE FASCINATING NUMBERS ARE: 1902 1920 2019 2190 2703 ...