How to find numbers with different digits between a given interval..please can anyone give me a code in c?

Answer 1

Please give input, output example to make your question more clear

Answer 2

numbers between 1000 and 2000 that contain all different digits...even a single digit is not repeated in the number..

Answer 3

means 1001,1002 is not valid output here?
give me some valid outputs between 1000 and 2000.

Answer 4

i need numbers like 1234 ,1357,1029 no repetition