제출 #116851

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
116851		nhimnam120	Lozinke (COCI17_lozinke)	C++14	80 / 100	1074 ms	4336 KiB

lozinke

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
map<string, long long> cnt;
vector<pair<long long,string> > inpp;
set<string> inp;
signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	long long n;
	cin >> n;
	for(int i=0;i<n;i++){
		string a;
		cin >> a;
		cnt[a]++;
		inp.insert(a);
	}
	long long ans=0;
	for(auto x: inp){
		inpp.push_back({x.size(),x});
	}
	sort(inpp.begin(),inpp.end());
	for(int i=0;i<inpp.size();i++){
		long long pos=0;
		string a=inpp[i].se;
		ans=ans+(cnt[a]*(cnt[a]-1));
		while(inpp[pos].fi<inpp[i].fi){
			string b=inpp[pos].se;
			for(int k=0;k<inpp[i].fi-inpp[pos].fi+1;k++){
				if(a[k]==b[0]){
					long long test=0;
					for(int j=0;j<inpp[pos].fi;j++){
						if(a[k+j]!=b[j]){
							test=1;
							break;
						}
					}
					if(test==0){
						ans=ans+cnt[a]*cnt[b];
						break;
					}
				}
			}
			pos++;
		}
	}
	cout << ans;
}

컴파일 시 표준 에러 (stderr) 메시지

lozinke.cpp: In function 'int main()':
lozinke.cpp:24:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<inpp.size();i++){
              ~^~~~~~~~~~~~

• Subtask 1: 80 / 100