分数转化为小数

很水，但是需要练速度反映。。。15分钟全部写对！！！！！！！！！！！！ 

#include <assert.h>#include <algorithm>#include <vector>using namespace std;class Decimal { public:  int integer;  bool recycle;  vector<int> decimal;};void toDecimal(int dividend, int divisor, Decimal& decimal) {  decimal.integer = dividend / divisor;  int remainder = dividend % divisor, recycle = 0, end = 0, curbit = 0;  while (remainder) {    int cur = remainder*10/divisor;    decimal.decimal.push_back(cur);        if (recycle || curbit > 0)           recycle = decimal.decimal[recycle] == cur ? recycle + 1 : 0;        if (curbit > 0 && recycle == end) {      decimal.decimal.resize(recycle);      decimal.recycle = true;      return;    }    ++curbit;    if (!recycle)      end = curbit;        remainder = (remainder * 10) % divisor;  }  decimal.recycle = false;}int main() {  Decimal dec;  toDecimal(12,8,dec);  return 0;}