Sanat

input/code.cpp: In function 'std::string classify(std::string&)':
input/code.cpp:43:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(s.size() >= 5 && nVowel >= s.size()) return finnish;
                                ^
input/code.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < s.size()-1; i++){
                      ^

#include <iostream>
#include <vector>
#include <algorithm>
#include <utility>
#include <set>
#include <sstream>

typedef long long LL;
using namespace std;

string foreign = "zxcbfqw";
string vowel = "aeiuo";
string finnish = "10-4";
string english = "QAQ";

string cppreference_faq = "Frequently asked questions   C++  What is the purpose of this site? Our goal is to provide programmers with a complete online reference for the C and C++ languages and standard libraries, i.e. a more convenient version of the C and C++ standards. The primary objective is to have a good specification of C and C++. That is, things that are implicitly clear to an experienced programmer should be omitted, or at least separated from the main description of a function, constant or class. A good place to demonstrate various use cases is the  example  section of each page. Rationale, implementation notes, domain specific documentation are preferred to be included in the  notes  section of each page. Why is the material here limited to the standard C and C++? In short, we chose quality over quantity. Some boost libraries could also be candidates for inclusion though. 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set<string> english_database;

bool is_foreign(char c){
    for(char f : foreign) if(c == f) return true;
    return false;
}

bool is_vowel(char c){
    for(char f : vowel) if(c == f) return true;
    return false;
}

string classify(string& s){
    if(english_database.count(s)){
        return "english";
    }
    LL nForeign = 0;
    LL nVowel = 0;
    for(char c : s){
        if(c > 'z') return finnish;
        if(is_foreign(c)) nForeign++;
        if(is_vowel(c)) nVowel++;
    }
    
    if(nForeign >= 2) return english;
    if(s.size() >= 5 && nVowel >= s.size()) return finnish;
    
    for(int i = 0; i < s.size()-1; i++){
        if(s[i] == s[i+1]) return finnish;
    }
    
    return english;
}

int main(){
    
    stringstream ss(cppreference_faq);
    string word;
    while(ss >> word) 
        english_database.insert(word);
    
    LL n; cin >> n;
    for(int i = 0; i < n; i++){
        string s; cin >> s;
        cout << classify(s) << "\n";
    }
}

Test 1

Verdict: WRONG ANSWER