Submission #4062605

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Source Code Expand

#include <bits/stdc++.h>

using LL = long long;
using namespace std;
int main()
{
    string A,B,C,D;cin >> A >> B;
    int ans = -1e9;
    C = A;
    D = B;
    for(int a = 0;a < 10;a++){
        int s = A.front()-'0';
        s=(s+a)%9+1;
        if(s == 0)continue;
        A.front() = s+'0';
    //    cout<<A<<endl;
        ans = max(ans,stoi(A) - stoi(B));
        A = C;
    }
    for(int a = 0;a < 10;a++){
        int s = B.front()-'0';
        s=(s+a)%9+1;
        if(s == 0)continue;
        B.front() = s+'0';
        ans = max(ans,stoi(A) - stoi(B));
        B = D;
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Judge Result