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Ṣm0wṢm0ẇ@ Returns the indexOriginally was (1-based) of the first match in the concatenation of the sorted and reverse sorted, otherwise returns 0. In Jelly, zero is considered falsey and non-zero is truthyṢm0w at four bytes.
Ṣm0wṢm0ẇ@ Input: string S Ṣ Sort S m0 Concatenate sort(S) with reverse(sort(S)) wẇ@ FindSublist theexists? firstCheck indexif thatS containsis S,contained elsein 0the previous result Ṣm0w Returns the index (1-based) of the first match in the concatenation of the sorted and reverse sorted, otherwise returns 0. In Jelly, zero is considered falsey and non-zero is truthy.
Ṣm0w Input: string S Ṣ Sort S m0 Concatenate sort(S) with reverse(sort(S)) w Find the first index that contains S, else 0 Ṣm0ẇ@ Originally was Ṣm0w at four bytes.
Ṣm0ẇ@ Input: string S Ṣ Sort S m0 Concatenate sort(S) with reverse(sort(S)) ẇ@ Sublist exists? Check if S is contained in the previous result Ṣm0w Returns the index (1-based) of the first match in the concatenation of the sorted and reverse sorted, otherwise returns 0. In Jelly, zero is considered falsey and non-zero is truthy.
Ṣm0w Input: string S Ṣ Sort S m0 Concatenate sort(S) with reverse(sort(S)) w Find the first index that contains S, else 0