beiJing 样例输出3解答代码#include<iostream>#include<string>#include<cstring>#include<set>#include<algorithm>#include<cmath>using namespace std;int judge(string s1,string s2){ int i,len=s1.length(); for(i=0;i<len;i++) { if(abs(s1[i]-s2[i])==32 || abs(s1[i]-s2[i])==0) continue; else return 0; } return 1;}int main(){ string s1,s2; cin>>s1; cin>>s2; if(s1.length()!=s2.length()) cout<<1<<endl; else if(s1.compare(s2)==0) cout<<2<<endl; else if(judge(s1,s2)) cout<<3<<endl; else cout<<4<<endl; return 0;}
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