HDU1002大数加法

大数加法

c++版：

 #include <map>
 #include <set>
 #include <stack>
 #include <queue>
 #include <cmath>
 #include <ctime>
 #include <vector>
 #include <cstdio>
 #include <cctype>
 #include <cstring>
 #include <cstdlib>
 #include <iostream>
 #include <algorithm>
 using namespace std;
 #define INF 0x3f3f3f3f
 #define MAX(a,b) (a > b ? a : b)
 #define MIN(a,b) (a < b ? a : b)
 #define mem0(a) memset(a,0,sizeof(a))

 typedef long long LL;
 const double eps = 1e-;
 const int MAXN = ;
 const int MAXM = ;

 char a[MAXN], b[MAXN];

 void slove()
 {
     int lena = strlen(a);
     int lenb = strlen(b);
     strrev(a);  strrev(b);
     int p = ;
     while(a[p] || b[p])
     {
         if(a[p]>='') a[p] -= '';
         if(b[p]>='') b[p] -= '';
         a[p] += b[p];
         a[p+] += a[p]/;
         a[p] = a[p] %  + '';
         p++;
     }
     strrev(a);
 }

 int main()
 {
     int T, Case=;
     scanf("%d", &T);
     while(T--)
     {
         mem0(a); mem0(b);
         scanf("%s %s%*c", a, b);
         printf("Case %d:\n", ++Case);
         printf("%s + %s = ", a, b);
         slove();
         printf("%s\n", a);
         if(T) printf("\n");
     }
     return ;
 }

java版：

 import java.math.*;
 import java.util.*;
 import java.io.*;

 public class Main{

     public static void main(String[] args) throws Exception
     {

         Scanner cin = new Scanner(new BufferedInputStream(System.in));
         int T = cin.nextInt();
         int c = 1;
         while((T--) != 0)//多组输入
         {
             BigInteger a,b;
             a = cin.nextBigInteger();
             b = cin.nextBigInteger();
             System.out.println("Case " + (c++) + ":");
             System.out.println(a + " + " + b + " = " + a.add(b));
             if(T != 0) System.out.println();
         }
     }
 }