大大的求和
#include<bits/stdc++.h>
using namespace std;
string sum(string s1,string s2)
{
if(s1.length()<s2.length())
{
string temp=s1;
s1=s2;
s2=temp;
}
int i,j;
for(i=s1.length()-1,j=s2.length()-1;i>=0;i--,j--)
{
s1[i]=char(s1[i]+(j>=0?s2[j]-'0':0)); //×¢Òâϸ½Ú
if(s1[i]-'0'>=10)
{
s1[i]=char((s1[i]-'0')%10+'0');
if(i) s1[i-1]++;
else s1='1'+s1;
}
}
return s1;
}
int main()
{
int n,m,j,k,i,T;
string a,b,ans;
cin>>T;
while (T--)
{
cin>>a;
while (cin>>b && b!="0")
{
a = sum(a,b);
}
cout<<a<<endl<<endl;
}
return 0;
}