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请教更简单的解法

Posted by beijing2008 at 2006-05-06 21:12:03 on Problem 1504
#include<iostream.h>
#include<string.h>
#include<memory.h>
int main()
{
	int n,i,k,j,p;char a[20],b[20];
	cin>>n;
	while(n--)
	{
		memset(a,'0',sizeof(a));memset(b,'0',sizeof(b));
		cin>>a>>b;
		if(strlen(a)>strlen(b)) {k=strlen(a);b[strlen(b)]='0';a[strlen(a)]='0';}
		else {k=strlen(b);a[strlen(a)]='0';b[strlen(b)]='0';}
		for(i=0;i<k;i++)
		{
			b[i]+=a[i]-'0';
			j=i;
			while(b[j]>'9')
			{
				b[j]-=10;
				b[j+1]++;j++;
			};
		}
		for(i=19;;i--) 
		{
			if(b[i]!='0') break;
		}
		b[i+1]='\0';
		k=strlen(b);
		p=0;
		for(j=0;j<=k;j++)
		{
			
			if(b[j]=='0'&&p==0) ;
			else
			{
				p=1;cout<<b[j];}
		}
		cout<<endl;
	};
	return 0;
}




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