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Write a recursive method that returns the sum of each digit times 'mult'. For example, if 'num'=307 and 'mult'=4, the result would be equivalent to 3*4+0*4+7*4=12+0+28=40 so 40 would be returned. However, you MUST solve it recursively! feb27_2018_HL_recursiveDigitSum(45, 1) → 9 feb27_2018_HL_recursiveDigitSum(1300702, 1) → 13 feb27_2018_HL_recursiveDigitSum(1507, 6) → 78 ...Save, Compile, Run (ctrl-enter) |
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Difficulty: 410
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