In 289B - Polo the Penguin and Matrix, there is a sentence "In one move the penguin can add or subtract number d from some matrix element". And the output is "the minimum number of moves the penguin needs to make all matrix elements equal". But the first sample input seems not fit that:
input:
2 2 2
2 4
6 8
output:
4
In my opinion, only 3 moves are needed:
2 4 2 2 2 2 2 2
6 8 --> 4 6 --> 2 4 --> 2 2
Is there any misunderstanding? Plz help me.
