Submission #316843

#	Time	Username	Problem	Language	Result	Execution time	Memory
316843		ronnith	Lozinke (COCI17_lozinke)	C++14	45 / 100	1099 ms	1024 KiB

lozinke

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#warning Check Integer OverFlow
#define ll long long
#define rep(i,a,b) for(int i=a;i<b;i++)
#define maxs(a,b) if(b>a)a=b
#define mins(a,b) if(b<a)a=b
#define debug(x) cerr<<"["<<#x<<":"<<x<<"] "
#define debug2(a,b) debug(a);debug(b)
#define debug3(a,b,c) debug2(a,b);debug(c)
#define de cerr
#define gcd(a,b) __gcd(a,b)
#define lcm(a,b) (((a)/(__gcd(a,b))) * b)
#define print(arr) for(auto it = arr.begin();it < arr.end();it ++){cout << *it << " ";}cout << ln;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define all(a) (a).begin(), (a).end()
#define vi vector<int>
#define v vector
#define p pair
#define pii p<int,int>
#define pb push_back
#define mk make_pair
#define f first
#define s second
#define ln "\n"
typedef long double ld;
using namespace std;
using namespace __gnu_pbds;
ll modF=1e9+7;

/*OUTPUT

*/

int N;
string a[20000];

bool cmp(string ax,string bx){
	return ax.length() > bx.length();
}

bool sub(int i,int j){
	int l1 = a[i].length();
	int l2 = a[j].length();
	// for(int it = 0;it <= l1 - l2;it ++){
	// 	bool pos = true;
	// 	for(int k = it;k < it + l2;k ++){
	// 		if(a[i][k] != a[j][k - it])
	// 			pos = false;
	// 	}
	// 	if(pos){
	// 		return true;
	// 	}
	// }
	// return false;
	int pi[l2];
	pi[0] = 0;
	for(int it = 1;it < l2;it ++){
		int h = pi[it - 1];
		while(h > 0 and a[j][h] != a[j][it]){
			h = pi[h - 1];
		}
		if(a[j][it] == a[j][h]){
			h ++;
		}
		pi[it] = h;
	}
	// debug2(a[i],a[j])
	// for(auto e:pi){
	// 	debug(e);
	// }
	// de << ln;
	int it1 = 0;
	int it2 = 0;
	while(it1 < l1){
		while(it2 < l2 and it1 < l1 and a[i][it1] == a[j][it2]){
			it1 ++;
			it2 ++;
		}
		if(it2 == 0){
			it1 ++;
			continue;
		}
		if(it2 == l2){
			return true;
		}
		it2 = pi[it2 - 1];
	}
	return false;
}

void solve(){
	cin >> N;
	rep(i,0,N){
		cin >> a[i];
	}
	sort(a,a + N,cmp);
	int ans = 0;
	for(int i = 0;i < N;i ++){
		for(int j = i + 1;j < N;j ++){
			if(a[i] == a[j]){
				ans += 2;
			}
			else if(sub(i,j)){
				ans ++;
			}
		}
	}
	cout << ans << ln;
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int t = 1;
	// cin >> t;
	while(t --){
		solve();
	}
}

Compilation message (stderr)

lozinke.cpp:4:2: warning: #warning Check Integer OverFlow [-Wcpp]
    4 | #warning Check Integer OverFlow
      |  ^~~~~~~

• Subtask 1: 45 / 100