oj.uz

Submission #1042239

# Submission time Handle Problem Language Result Execution time Memory
1042239 2024-08-02T17:24:55 Z milo_milkshake Selling RNA Strands (JOI16_selling_rna) C++14
100 / 100
 135 ms 145464 KB 
#include <bits/stdc++.h>
using namespace std;
#define uwu "RNA"

typedef long long ll;
#define pb push_back
#define endl '\n'
#define FOR(i, a, b) for(int i = a; i <= b; i++)
#define FORD(i, a, b) for(int i = a; i >= b; i--)
const int N = 1e5 + 3;
const int M = 2e6 + 2;
const int INF = 1e9 + 7;

int n, q;

string s[N];
int id[N];

int pre[M][4];
pair<int,int> range[M];
int nodepre = 1;

int suf[M][4];
vector <int> vt[M];
int nodesuf = 1;

int num(char c){
	if (c == 'U') return 3;
	if (c == 'G') return 1;
	return c - 'A';
}
void addpre(string s, int inc){
	int pos = 1, len = s.size();
	FOR(i, 0, len - 1){
		int c = num(s[i]); 
		if (!pre[pos][c]){
			pre[pos][c] = ++nodepre;
			range[nodepre].first = INF;
		}

		pos = pre[pos][c];  
		range[pos].first = min(range[pos].first, inc);
		range[pos].second = max(range[pos].second, inc);
	}
}
void addsuf(string s, int inc){
	int pos = 1, len = s.size();
	FORD(i, len - 1, 0){
		int c = num(s[i]);
		if (!suf[pos][c]) suf[pos][c] = ++nodesuf;
		pos = suf[pos][c]; vt[pos].pb(inc);
	}
}
pair<int,int> findpre(string s){
	int pos = 1, len = s.size();
	FOR(i, 0, len - 1){
		int c = num(s[i]); pos = pre[pos][c];  
		if (pos == 0) break;
	}
	return range[pos]; 
}
int calc(string s, pair<int,int> inc){
	int pos = 1, len = s.size();
	FORD(i, len - 1, 0){
		int c = num(s[i]); pos = suf[pos][c];
		if (pos == 0) break; 
	}

	int L = lower_bound(vt[pos].begin(), vt[pos].end(), inc.first) - vt[pos].begin();
	int R = upper_bound(vt[pos].begin(), vt[pos].end(), inc.second) - vt[pos].begin();
	return R - L;
}
void solve(void){
	FOR(i, 1, n) id[i] = i;
	sort(id + 1, id + n + 1, [&] (int u, int v){
		return s[u] < s[v];
	});

	FOR(i, 1, n){
		addpre(s[id[i]], i);
		addsuf(s[id[i]], i);
	}

	while(q--){
		string P, S; cin >> P >> S;
		cout << calc(S, findpre(P)) << endl;
	}
}
signed main(){
 	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	if(fopen(uwu".inp","r")){
		freopen(uwu".inp","r",stdin);
		freopen(uwu".out","w",stdout);
	}

	cin >> n >> q;
	FOR(i, 1, n) cin >> s[i];

	solve();

	cerr << "\nTime used: " << clock() << "ms\n";
	return 0;
}

Compilation message

selling_rna.cpp: In function 'int main()':
selling_rna.cpp:93:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |   freopen(uwu".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
selling_rna.cpp:94:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |   freopen(uwu".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 50780 KB Output is correct
2 Correct 14 ms 50780 KB Output is correct
3 Correct 14 ms 50780 KB Output is correct
4 Correct 18 ms 50644 KB Output is correct
5 Correct 14 ms 50776 KB Output is correct
6 Correct 18 ms 50788 KB Output is correct
7 Correct 17 ms 50792 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 145464 KB Output is correct
2 Correct 127 ms 140372 KB Output is correct
3 Correct 72 ms 109656 KB Output is correct
4 Correct 57 ms 107192 KB Output is correct
5 Correct 86 ms 137812 KB Output is correct
6 Correct 89 ms 139092 KB Output is correct
7 Correct 38 ms 61036 KB Output is correct
8 Correct 108 ms 108904 KB Output is correct
9 Correct 94 ms 100528 KB Output is correct
10 Correct 96 ms 99840 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 51804 KB Output is correct
2 Correct 27 ms 51992 KB Output is correct
3 Correct 28 ms 52056 KB Output is correct
4 Correct 26 ms 52060 KB Output is correct
5 Correct 29 ms 52080 KB Output is correct
6 Correct 27 ms 52104 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 50780 KB Output is correct
2 Correct 14 ms 50780 KB Output is correct
3 Correct 14 ms 50780 KB Output is correct
4 Correct 18 ms 50644 KB Output is correct
5 Correct 14 ms 50776 KB Output is correct
6 Correct 18 ms 50788 KB Output is correct
7 Correct 17 ms 50792 KB Output is correct
8 Correct 127 ms 145464 KB Output is correct
9 Correct 127 ms 140372 KB Output is correct
10 Correct 72 ms 109656 KB Output is correct
11 Correct 57 ms 107192 KB Output is correct
12 Correct 86 ms 137812 KB Output is correct
13 Correct 89 ms 139092 KB Output is correct
14 Correct 38 ms 61036 KB Output is correct
15 Correct 108 ms 108904 KB Output is correct
16 Correct 94 ms 100528 KB Output is correct
17 Correct 96 ms 99840 KB Output is correct
18 Correct 31 ms 51804 KB Output is correct
19 Correct 27 ms 51992 KB Output is correct
20 Correct 28 ms 52056 KB Output is correct
21 Correct 26 ms 52060 KB Output is correct
22 Correct 29 ms 52080 KB Output is correct
23 Correct 27 ms 52104 KB Output is correct
24 Correct 106 ms 132628 KB Output is correct
25 Correct 135 ms 133008 KB Output is correct
26 Correct 123 ms 131680 KB Output is correct
27 Correct 69 ms 104552 KB Output is correct
28 Correct 118 ms 76448 KB Output is correct
29 Correct 74 ms 59532 KB Output is correct