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Interview Puzzles :: Discussion

• There are two gates. One goes to hell and the other goes to heaven. The
gatekeeper asks a puzzle to Sahil in order to decide which gate he
should open for him. Obviously if Sahil answers the puzzle correct , the
gate to heaven will be opened else the gate to hell. According to the
problem Sahil is given n consecutive integers from 1 to n ,which are
written in a row. He has to put signs â€œ+â€ and â€œ-â€ in front of them so
that the expression obtained is equal to 0 or, if the task is impossible
to do,then Sahil should tell the gatekeeper â€œNo solution exists for the
given problem â€œ.The gatekeeper expects Sahil to find his answer in
minimum time using an efficient approach rather than examining all
possible ways to place the signs. Sahil comes to you considering you as
his friend. Would you help him out to get to the solution ?

Explanation :
No Best Answer on this question yet!