sicily 2382 Flowers Flourish from France

// source code of submission 744571, Zhongshan University Online Judge System #include <iostream> #include <string> #include <vector> #include <cctype> using namespace std; int main() { string s,sub_str; int mark,flag,i; while(getline(cin,s),s!="*") { vector <char> v; string::iterator iter = s.begin(); v.push_back(*s.begin()); for(;iter!=s.end();iter++) { if(isspace(*iter)) { s.erase(s.begin(),iter+1); v.push_back(*s.begin()); iter = s.begin(); continue; } } flag = 1; for(i = 0;i < v.size()-1;i++) { mark = v[i]-v[i+1]; if(mark!=32&&mark!=-32&&mark!=0) flag = 0; } if(flag) cout<<"Y"<<endl; else cout<<"N"<<endl; } return 0; }