Getting run time error in NUMGAME2?
why its showing run time error???

I do not know why are you making this problem so difficult, solution is straightforward:

if (N % 4 == 1)
    ALICE wins
    BOB wins

Hope it helps, Best Luck :slight_smile:

I cant understand your code… could u plz write the algorithm instead…

can u explain me how BOB is winning when N=7;
accrding to me-

first chance:
bob would take out from N prime number 5…ie…(N-5)so new N is 2.
second chance:
alice would take out 1 and would certainly WIN…
plz help me out…

please see my answer to your other question.

Kindly post your question on the editorial page of the respective problem here: