Submission #369203

#	Time	Username	Problem	Language	Result	Execution time	Memory
369203		idontreallyknow	Parametriziran (COCI19_parametriziran)	C++14	0 / 110	49 ms	65540 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
template <class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937/*_64*/ rng(chrono::steady_clock::now().time_since_epoch().count());
#define printArr(arr, n) cerr << #arr << " = ["; for(int i=0; i<(n); i++){if (i) cerr << ", "; cerr << arr[i];} cerr << "]\n"
template<class A> ostream& operator<<(ostream &cout, vector<A> const &v) {cout << "["; for(int i = 0; i < v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";};
template<class A, class B> ostream& operator<<(ostream &cout, const pair<A,B> &x) {return cout << "(" <<x.first << ", " << x.second << ")";};
void _print() {cerr << "]\n";}
template <class T, class... V> void _print(T t, V... v) {cerr << t; if (sizeof...(v)) cerr << ", "; _print(v...);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#define fi first
#define se second
#define SZ(x) (int)((x).size())
#define pii pair<int,int>
struct TrieAlpha {
	vector<array<int,27>> nxt; vector<int> sz; int en = 0;
	TrieAlpha(int x) : nxt(x), sz(x) {}
	void update(string s, int ct) //change ct for add/remove
	{
		int cur = 0; sz[cur] += ct;
		for (int q = SZ(s)-1; q >= 0; q--) {
			int t = s[q]-'a';
			if (!nxt[cur][t]) nxt[cur][t] = ++en;
			sz[cur=nxt[cur][t]] += ct;
		}
	}
	int contains(string s)
	{
		int cur = 0;
		for (int q = SZ(s)-1; q >= 0; q--) {
			int t = s[q]-'a';
			if (!nxt[cur][t]) return 0;
			cur = nxt[cur][t];
		}
		return sz[cur];
	}
};
TrieAlpha tr(3200000);
int amt[64];
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n,m;
	cin >> n >> m;
	string s;
	string t = "";
	for (int q = 0; q < m; q++) t.push_back('{');
	ll tot = 0;
	for (int q = 0; q < n; q++) {
		cin >> s;
		for (int w = 1; w < (1<<m); w++) {
			bool bad = false;
			string ss = t;
			for (int e = 0; e < m; e++) {
				if (((1<<e)&w) > 0) {
					if (s[e] == '?') bad = true;
					else ss[e] = s[e];
				}
			}
			if (bad) continue;
			tot += (__builtin_popcount(w) % 2 ? 1 : -1 ) * amt[w]-tr.contains(ss);
			tr.update(ss,1);
			amt[w]++;
		}
	}
	cout << (ll)n*(n-1)/2 - tot << "\n";
	return 0;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 11
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• Subtask 10: 0 / 11