hopefully after a long wait jetbrains has announced new C/C++ IDE called Clion with all needed features needed from any programmer, every one should have a try. Clion

i have tried all what i have to solve this problem, just need a hint or an algorithm to study and solve, not a code. please just a hint.

recently i was trying to solve this problem second time to solve problem like this i.e. bfs 3D array with bitmasks i got TLE

this is my code

so any one can help me ?!

thanks in advance