要點:
通過對各個箱子中量的不同取法來識別那個是劣質箱子。
input
10
102210
output
Input the number of boxes:10
1 box take 1 units.
2 box take 2 units.
3 box take 4 units.
4 box take 8 units.
5 box take 16 units.
6 box take 32 units.
7 box take 64 units.
8 box take 128 units.
9 box take 256 units.
10 box take 512 units.
Normal weight is:102300
Input reality weight
102210
4 box is bad.
1 box is bad.