#include <iostream> #include <map> using namespace std;map<string,int> ch; map<int,string> x; int M[13]={0,31,28,31,30,31,30,31,31,30,31,30,31}; bool isrun(int y){ if(y%400==0||(y%4==0&&y%100!=0)) return true; return false; } void add(int& y,int& m,int...