Codeforces Beta Round #57 (Div. 2)

http://codeforces.com/contest/61

A

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 #define lson l,mid,rt<<1
 4 #define rson mid+1,r,rt<<1|1
 5 #define sqr(x) ((x)*(x))
 6 #define pb push_back
 7 #define eb emplace_back
 8 #define maxn 1000005
 9 #define rep(k,i,j) for(int k=i;k<j;k++)
10 typedef long long ll;
11 typedef unsigned long long ull;
12 
13 string s1,s2;
14 
15 int main(){
16     #ifndef ONLINE_JUDGE
17         freopen("input.txt","r",stdin);
18     #endif
19     std::ios::sync_with_stdio(false);
20     cin>>s1>>s2;
21     rep(i,0,s1.length()){
22         if(s1[i]==s2[i]){
23             cout<<0;
24         }
25         else cout<<1;
26     }
27 }

View Code