UVA424 - Integer Inquiry

題目鏈接：UVA424

大數相加問題，模擬手算即可，具體看代碼：

 
#include<iostream>   
#include<cstdio>   
#include<cstring>   
using namespace std;  
char number[255]={'0'};  
int answer[260]={0};  
void reverse(char* pointer);  
int main()  
{  
    int maxIndex=0;  
    while(scanf("%s",number)&&strcmp(number, "0"))  
    {  
        int length=strlen(number);  
        reverse(number);  
        int index;  
        int carryBit=0;  
        for(index=0;index<length;index++)  
        {  
            carryBit=answer[index]+(number[index]-'0')+carryBit;  
            answer[index]=carryBit%10;  
            carryBit=carryBit/10;  
        }  
        while(carryBit)  
        {  
            carryBit=answer[index]+carryBit;  
            answer[index++]=carryBit%10;  
            carryBit=carryBit/10;  
        }  
        if(index>maxIndex)  
            maxIndex=index;  
    }  
    int flag=1;  
    for(int i=maxIndex;i>0;i--)  
    {  
        if(flag)  
        {  
            if(answer[i])  
            {  
                cout<<answer[i];  
                flag=0;  
            }  
        }  
        else  
            cout<<answer[i];  
    }  
    cout<<answer[0]<<endl;  
    memset(number,'0',255);  
    return 0;  
}  
void reverse(char* pointer)  
{  
    int length=strlen(pointer);  
    char temp;  
    for(int i=0,j=length-1;i<j;i++,j--)  
    {  
        temp=pointer[i];  
        pointer[i]=pointer[j];  
        pointer[j]=temp;  
    }  
}