1055. Shortest Way to Form String

In a data compression system, a crucial task is to reconstruct a large dataset from a smaller set of reference data. The goal is to achieve this reconstruction using the minimum number of iterations, where each iteration involves selecting a subset of elements from the reference data that can be used to rebuild a portion of the target dataset. The challenge lies in determining the smallest number of iterations required to perfectly reconstruct the target dataset from the given reference data, or concluding that it's impossible if the reference data lacks sufficient information.

Examples
Input: ["abc","abcbc"]
Output: 2
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1055. Shortest Way to Form String

In a data compression system, a crucial task is to reconstruct a large dataset from a smaller set of reference data. The goal is to achieve this reconstruction using the minimum number of iterations, where each iteration involves selecting a subset of elements from the reference data that can be used to rebuild a portion of the target dataset. The challenge lies in determining the smallest number of iterations required to perfectly reconstruct the target dataset from the given reference data, or concluding that it's impossible if the reference data lacks sufficient information.