#include <iostream> #include<cmath>//存有平方函数的函数库 using namespace std; int main() { const char c[] ={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'}; string a; getline(cin,a); int b = a.length()-1; int e = -1; int d = 0; for(int i =b;i>1;i--){ e = e+1; for(int j = 0;j&l...