My submitted solution: https://www.codechef.com/viewsolution/9929014 I referred to the problem setters solution while solving for fast exponentiation function . The first two test cases passed . The last one — wrong answer (expected TLE) . Where am i going wrong ??

updated my solution to this but still same error:: https://www.codechef.com/viewsolution/9930909

Changed FMOD function to normal % and got AC . Does anyone know why???