Category: ACM

Uva 10815 #include<bits/stdc++.h> using namespace std; int main() {     string s = “”; char ch; set<string> r; set<string>::iterator it;     while(1) { ch=getchar(); if(ch == -1) break;         //cout << ch ; if(isalpha(ch)) s.push_back(tolower(ch)); else { if(s.size()!=0) { r.insert(s); //cout<<s<<“” << r.size()<<endl; s = “”; } }     } if(s.size()!=0) r.insert(s); for(it = r.begin();…