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Tag: letter

Doubling one letter with each new occurence

so I have task to double number of letter “a” every time it occurs in a string. For example sentence “a cat walked on the road” , at the end must be “aa caaaat waaaaaaaalked on the roaaaaaaaaaaaaaaaa” . I had something like this on my mind but it doubles every charachter, not only “a”. Answer You need to check