HDU 1197 Specialized Four-Digit Numbers

其實就是之前刷過的一道題：SKY數，傳送門： https://blog.csdn.net/qq_39459939/article/details/83184667 #include <stdio.h> #include <math.h> int calSumInSomeSystem(int DecNum, int System) { int sum = 0; int a = DecNum,

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