求助各位大佬~~~，一道算法题
R
Gi ven a “flatten” dictionary object, whose keys are dot-separated. For example, { ‘A’: 1, ‘B.A’: 2, ‘B.B’: 3, ‘CC.D.E’: 4, ‘CC.D.F’: 5}. Implement a function in any language to transform it to a “nested” dictionary object. In the above case, the nested version is like:
{
‘A’: 1,
‘B’: {
‘A’: 2,
‘B’: 3,
},
‘CC’: {
‘D’: {
‘E’: 4,
‘F’: 5,
}
}
}
It’s guaranteed that no keys in dictionary are prefixes of other keys.
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