#include <iostream>#include <string>#include <map>using namespace std;map<string, int> m;map<string, int>::iterator it; int main(){ int i, len, max = 0, time; string word, tmp; bool flag; while (cin >> word){ len = word.length(); tmp.clear();flag = false;for (i = 0; i < len; i++){ if (isalpha(word[i])){ word[i] = tolower(word[i]); tmp.push_back(word[i]); flag = false; } else{ time = ++m[tmp]; flag = true; if (time > max) max = time; tmp.clear(); }} if (!flag){ time = ++m[tmp]; if (time > max) max = time;} } cout << max << " occurrences" << endl; for (it = m.begin(); it != m.end(); it++){ if (it->second == max) cout << it->first << endl; } }
