1 #include <iostream>
2 #include <cstring>
3 #include <cstdlib>
4 #include <cstdio>
5 using namespace std;
6 const int MAX = 110;
7 class CHugeInt {
8 private:
9 char hugenum[210];
10 public:
11 void reverse(char* s){
12 int i = 0,j = strlen(s) - 1;
13 while(i < j){
14 swap(s[i],s[j]);
15 ++ i;
16 -- j;
17 }
18 }
19
20 CHugeInt(const char* s){
21 memset(hugenum,'\0',sizeof(hugenum));//记得重置！！！
22 strcpy(hugenum,s);
23 reverse(hugenum);
24 }
25
26 CHugeInt(int n){
27 memset(hugenum,'\0',sizeof(hugenum));
28 sprintf(hugenum,"%d",n);
29 reverse(hugenum);
30 }
31
32 CHugeInt operator+(const CHugeInt& a){
33 CHugeInt tmp(0);
34 int cnt = 0;
35 for(int i = 0;i < 210;++ i){
36 char c1 = hugenum[i];
37 char c2 = a.hugenum[i];
38 if(c1 == 0 && c2 == 0 && cnt == 0)
39 break;
40 if(c1 == 0)
41 c1 = '0';
42 if(c2 == 0)
43 c2 = '0';
44 int k = c1 - '0' + c2 - '0' + cnt;
45 if(k >= 10){
46 k = k % 10;
47 tmp.hugenum[i] = k + '0';
48 cnt = 1;
49 }
50 else{
51 tmp.hugenum[i] = k + '0';
52 cnt = 0;
53 }
54 }
55 return tmp;
56 }
57
58 friend CHugeInt operator+(int n,const CHugeInt& a){
59 CHugeInt tmp = CHugeInt(n) + a;
60 return tmp;
61 }
62
63 CHugeInt operator+(int n){
64 CHugeInt tmp = *this + CHugeInt(n);
65 return tmp;
66 }
67
68 CHugeInt operator+=(int n){
69 //*this = *this + CHugeInt(n);
70 *this = *this + n;
71 return *this;
72 }
73
74 CHugeInt operator++(){//前置++
75 /*int n = 1;
76 *this = *this + CHugeInt(n);*/
77 *this = *this + 1;
78 return *this;
79 }
80
81 CHugeInt operator++(int){
82 CHugeInt tmp = CHugeInt(*this);//默认复制函数，会把所有参数都复制过去
83 /*int n = 1;
84 *this = *this + CHugeInt(n);*/
85 *this = *this + 1;
86 return tmp;
87 }
88
89 friend ostream& operator<<(ostream& o,const CHugeInt& a){
90 int len = strlen(a.hugenum);
91 for(int i = len - 1;i >= 0;-- i)
92 o << a.hugenum[i];
93 return o;
94 }
95
96 };
97 int main()
98 {
99 char s[210];
100 int n;
101
102 while (cin >> s >> n) {
103 CHugeInt a(s);
104 CHugeInt b(n);
105
106 cout << a + b << endl;
107 cout << n + a << endl;
108 cout << a + n << endl;
109 b += n;
110 cout << ++ b << endl;
111 cout << b++ << endl;
112 cout << b << endl;
113 }
114 return 0;
115 }
