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比较简短的一个方法,题目的例子能过,自己造一些简单数据也能过,9999的答案是36,但就是WA。为什么?(附C代码)#include<stdio.h> void main() { int num; int result,count; scanf("%d",&num); result=1;count=1; while(result%num!=0) { result=(result%num)*10+1; count++; } printf("%d\n",count); } Followed by:
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