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I agree, the 3rd solution is probably less efficient because it has to do an unnecessary concatenation (+). I also like solution 1 and 2 better since it's clearer what the code accomplishes.
Java Int to String
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I agree, the 3rd solution is probably less efficient because it has to do an unnecessary concatenation (+). I also like solution 1 and 2 better since it's clearer what the code accomplishes.
HackerRank solutions.