[BaekJoon][1181] 단어 정렬

BAEKJOON ONLINE JUDGE

1181번 단어 정렬

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;
 
bool cmp(const string &first, const string &second)
{
    if (first.size() == second.size())        return first < second;
    return first.size() < second.size();
}
 
int main()
{
    int n;
    int i;
 
    scanf("%d", &n);
 
    vector<string> s(n);
 
    for (i = 0; i < n; i++) {
        cin >> s[i];
    }
 
    sort(s.begin(), s.end(), cmp);
    s.erase(unique(s.begin(), s.end()), s.end());
    
    for (i = 0; i < s.size(); i++) {
        cout << s[i] << endl;
    }
 
    return 0;
}