``` #include <iostream> #include <math.h> #include <cstdio> #include <map> #include <string> using namespace std; int main(){ int n; cin >> n; float goal = n * 0.01; int g = ceil(goal); map<string ,int> m; map<string ,int>::iterator it; for(int i = 0; i < n; i++){ //输入 string key; cin >> key; it=m.find(key); if(it == m.end()){ m.insert(pair<string,int>(key,1)); } else { ++it->second ; } } int sum =0; for(it=m.begin(); it != m.end();it++){ if(it->second >= g ) sum++; } cout << sum; return 0; } ```