17 lines
291 B
C++
17 lines
291 B
C++
#include<bits/stdc++.h>
|
|
using namespace std;
|
|
int n;
|
|
unordered_map<string, int> m;
|
|
int main() {
|
|
scanf("%d", &n);
|
|
for(int i = 1; i <= n; ++i) {
|
|
string s;
|
|
cin >> s;
|
|
m[s]++;
|
|
}
|
|
int ans = 0;
|
|
for(auto a:m) ans++;
|
|
printf("%d\n", ans);
|
|
return 0;
|
|
}
|