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// -- lefthand3.cpp - Find longest word typed with left hand.
// Fred Swartz - 2002-09-16
// Use set to save all words of longest length.
// Uses iterators or copy
#include <iostream>
#include <string>
#include <set>
using namespace std;
//--- prototypes
bool isOnlyLeftHand(string w);
//============================================================= main
int main() {
string word; // holds each input word
set<string> maxWords; // longest words
int maxlen = 0; // length of longest word
while (cin >> word) {
if (word.length() >= maxlen && isOnlyLeftHand(word)) {
if (word.length() > maxlen) {
maxlen = word.length(); // new max
maxWords.clear(); // clear shorter words
}
maxWords.insert(word); // remember this word
}
}
cout << "Words of length " << maxlen << endl;
set<string>::iterator pos;
for (pos = maxWords.begin(); pos != maxWords.end(); ++pos) {
cout << *pos << endl;
}
/* OR copy(maxWords.begin(), maxWords.end(),
ostream_iterator<string>(cout, "\n")); */
return 0;
}//end main
//=================================================== isOnlyLeftHand
bool isOnlyLeftHand(string w) {
return w.find_first_not_of("qwertasdfgzxcvb") == string::npos;
}//end isOnlyLeftHand |