#include <iostream> #include <algorithm> #include <cstdio> #include <cstring> #include <vector> #include <sstream> #include <string> using namespace std; int a[1001],b[1001]; char c[1001]; string jj(string a,string b) { int i1 = a.size() - 1; int i2 = b.size() - 1; string s; int carry = 0; while (i1 >= 0 || i2 >= 0) { char ch = carry; if (i1 >= 0) { if (a[i1] < '0' || a[i1] > '9') continue; ch += a[i1] - '0'; } if (i2 >= 0) { if (b[i2] < '0' || b[i2] > '9') continue; ch += b[i2] - '0'; } if (ch >= 10) { carry = 1; ch -= 10; } else carry = 0; s.push_back(ch + '0'); i1--; i2--; } if (carry) s.push_back('1'); reverse(s.begin(), s.end()); return s; } class Decimal { public: string s1; Decimal(string a=""):s1(a){} Decimal(unsigned long long int n) { stringstream ss; string str; ss<<n; ss>>str; s1=str; } friend istream &operator >>(istream & it,Decimal &T) { it>>T.s1; return it; } friend ostream &operator << (ostream & os,const Decimal &T) { os<<T.s1; return os; } friend Decimal operator + ( Decimal T1,Decimal T2) { string cs=jj(T1.s1,T2.s1); return Decimal(cs); } Decimal &operator ++() { string t="1"; string tt=jj(t,s1); s1=tt; return *this; } char operator [](int i) { return s1[i]; } int getLength() { return s1.size(); } }; int main() { Decimal a, b, c, d, e, f("554433"), g(12345); int i; cin>>a>>b>>i; cout<<"a = "<<a<<endl; cout<<"b = "<<b<<endl; cout<<"i = "<<i<<endl; c = a + b; d = ++a; e = b + i; cout<<"a = "<<a<<endl; cout<<"c = "<<c<<endl; cout<<"d = "<<d<<endl; cout<<"e = "<<e<<endl; cout<<"f = "<<f<<endl; cout<<"g = "<<g<<endl; cout<<c[0]; for (i = 1; i < c.getLength(); i++) { cout<<" "<<c[i]; } cout<<endl; return 0; }