Submission #4479893

---

Source Code Expand

#include<bits/stdc++.h>
using namespace std;
string s1,s2;
int suan(string x,string y)
{
    int k1=x[0]*100+x[1]*10+x[2];
    int k2=y[0]*100+y[1]*10+y[2];
    return k1-k2;
}
int main(){
    cin>>s1>>s2;
    bool p=0;
    for(int i=0;i<3;++i)
    {
        if(s1[i]<='9'||s2[i]>='1')
        {
            int maxn=0;
            if(s1[i]<'9')
            {
                char c=s1[i];
                s1[i]='9';
                maxn=suan(s1,s2);
                s1[i]=c;
            }
            if((s2[i]>'1'&&i==0)||(s2[i]>'0'&&i>0))
            {
                char c=s2[i];
                if(i==0)s2[i]='1';
                else s2[i]='0';
                maxn=max(maxn,suan(s1,s2));
                s2[i]=c;
            }
            cout<<maxn<<endl;
            p=1;
            break;
        }
        if(!p)cout<<suan(s1,s2)<<endl;
    }
    return 0;
}

Submission Info

Judge Result