(https://leetcode-cn.com/problems/greatest-common-divisor-of-strings/solution/zi-fu-chuan-de-zui-da-gong-yin-zi-by-leetcode-solu/有详细的说明) AC代码: classSolution {public:stringgcdOfStrings(stringstr1,stringstr2) {if(str1 + str2 != str2 + str1)return"";returnstr1.substr(0, __...
GCD(a, b) of two positive integersaandbis equal to the biggest integerdsuch that both integersaandbare divisible byd. There are many efficient algorithms to find greatest common divisorGCD(a, b), for example, Euclid algorithm. d, such that all integersa, a + 1, a +...