/*
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`.:+oooo+/-.`
``````
*/
#ifdef aimbot
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#endif
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <map>
#include <set>
#include <queue>
#include <ostream>
#include <istream>
#include <typeinfo>
#include <iomanip>
#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <limits>
#include <fstream>
#include <array>
#include <list>
#include <bitset>
#include <functional>
#include <random>
#include <cstring>
#include <chrono>
#define random escape__from__random__aetuhoetnuhshe
#define mt make_tuple
#define x first
#define y second
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define umap unordered_map
#define uset unordered_set
#define elif else if
#define len(v) ((int)v.size())
#define f(i, n) for (int i = 0; i < (n); i++)
#define rof(i, n) for (int i = ((n) - 1); i >= 0; i--)
#define apply(v, act) for (auto &x : v) { act; }
#define log(args...) {string s = #args;deque<string> deq;\
string buf = "";int bal = 0;for (char c : s) {\
if (c == '(' || c == '[' || c == '{') {bal++;\
} else if (c == ')' || c == ']' || c == '}') {\
bal--;} else {if (bal == 0) {if (c == ',') {\
deq.pb(buf);buf = "";} else {if (c != ' ') {\
buf += c;}}}}}if (!buf.empty()) {deq.pb(buf);}\
smart_io::precall_print();smart_io::_print(deq, args);}
#define print \
smart_io::precall_print(); \
cout,
#define scan cin,
#ifdef fast_allocator
const int MAXMEM = 200 * 1000 * 1024;
char _memory[MAXMEM];
size_t _ptr = 0;
void* operator new(size_t _x) { _ptr += _x; assert(_ptr < MAXMEM); return _memory + _ptr - _x; }
void operator delete (void*) noexcept {}
#endif
using namespace std;
char string_in_buffer[(int)2e5];
void fast_scan(int &x) { scanf("%d", &x); }
void fast_scan(long long &x) { scanf("%lld", &x); }
void fast_scan(unsigned long long &x) { scanf("%llu", &x); }
void fast_scan(double &x) { scanf("%lf", &x); }
void fast_scan(long double &x) { scanf("%Lf", &x); }
void fast_scan(char &x) {
scanf("%c", &x);
if (x == '\n') {
fast_scan(x);
}
}
void fast_scan(string &x) {
scanf("%s", string_in_buffer);
x = string(string_in_buffer);
}
template<class TFirst, class TSecond>
void fast_scan(pair<TFirst, TSecond> &p) {
fast_scan(p.first);
fast_scan(p.second);
}
template <class T>
void fast_scan(vector<T> &v) {
for (auto &x : v) fast_scan(x);
}
void fast_print(const int &x) { printf("%d", x); }
void fast_print(const unsigned int &x) { printf("%u", x); }
void fast_print(const long long &x) { printf("%lld", x); }
void fast_print(const unsigned long long &x) { printf("%llu", x); }
void fast_print(const double &x) { printf("%.15lf", x); }
void fast_print(const long double &x) { printf("%.15Lf", x); }
void fast_print(const char &x) { printf("%c", x); };
void fast_print(const string &x) { printf("%s", x.c_str());}
void fast_print(const char v[]) { fast_print((string)v); }
template<class TFirst, class TSecond>
void fast_print(const pair<TFirst, TSecond> &p) {
fast_print(p.first);
fast_print(' ');
fast_print(p.second);
}
template <class T>
void fast_print(const vector<T> &v) {
if (v.empty()) return;
fast_print(v[0]);
for (int i = 1; i < v.size(); i++) {
fast_print(' ');
fast_print(v[i]);
}
}
template <class T>
void fast_print(const vector<vector<T>> &v) {
if (v.empty()) return;
fast_print(v[0]);
for (int i = 1; i < v.size(); i++) {
fast_print('\n');
fast_print(v[i]);
}
}
template <class T>
void fast_print(const T &v) {
for (const auto &x : v) {
fast_print(x);
fast_print(' ');
}
}
using namespace std;
namespace smart_io {
string print_start = "";
string sep = " ";
bool first_print = false;
void precall_print() {
fast_print(print_start);
print_start = "\n";
first_print = true;
}
void _print(deque<string>) {}
template<class T, class... Args>
void _print(deque<string> names, T elem, Args... args) {
if (!first_print) {
fast_print("\n");
} else {
first_print = false;
}
fast_print(names.front());
fast_print(" = ");
fast_print(elem);
names.pop_front();
_print(names, args...);
}
} //namespace smart_io
template <class T>
ostream &operator,(ostream &os, const T &object) {
if (!smart_io::first_print) {
fast_print(smart_io::sep);
} else {
smart_io::first_print = false;
}
fast_print(object);
return os;
}
template <class T>
istream &operator,(istream &is, T &object) {
fast_scan(object);
return is;
}
namespace random {
using namespace std::chrono;
mt19937 rng(duration_cast< milliseconds >(
system_clock::now().time_since_epoch()
).count());
uniform_real_distribution<> prob_dist(0.0, 1.0);
};
namespace typedefs {
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef long double ld;
}
namespace numbers_operation {
template<class T>
T floor_mod(T a, T b) {
if (a >= 0 && b >= 0) return a % b;
if (a <= 0 && b <= 0) return a % b;
return abs(b) - (abs(a) % abs(b));
}
}
using namespace numbers_operation;
using namespace typedefs;
using namespace random;
int n, m;
const ll MOD = 1e9 + 7;
const ll base = 179;
vector<ll> power;
struct Hasher {
vector<ll> hash;
vector<ll> rehash;
Hasher(string s) {
hash.resize(len(s));
hash[0] = s[0];
for (int i = 1; i < len(s); i++) {
hash[i] = ((hash[i - 1] * base) + s[i]) % MOD;
}
reverse(s.begin(), s.end());
rehash.resize(len(s));
rehash[0] = s[0];
for (int i = 1; i < len(s); i++) {
rehash[i] = ((rehash[i - 1] * base) + s[i]) % MOD;
}
}
};
const int LIM = 100;
unordered_map<int, int> calc[LIM + 2][LIM + 2];
signed main(signed argc, char *argv[]) {
power.pb(1);
for (int i = 0; i < 2e6 + 100; i++) {
power.pb((power.back() * base) % MOD);
}
scan n, m;
vector<Hasher> big;
f(i, n) {
string s;
scan s;
if (len(s) > LIM) {
big.emplace_back(s);
} else {
Hasher hasher(s);
for (int a = 1; a <= len(s); a++) {
for (int b = 1; b <= len(s); b++) {
ll A = hasher.hash[a - 1];
ll B = hasher.rehash[b - 1];
ll C = (A + B * power[a]) % MOD;
calc[a][b][C]++;
}
}
}
}
f(i, m) {
int cnt = 0;
string p, q;
scan p, q;
reverse(q.begin(), q.end());
Hasher ph(p);
Hasher pq(q);
ll hp = ph.hash.back();
ll hq = pq.hash.back();
for (auto &t : big) {
if (t.hash[len(p) - 1] == hp
&& t.rehash[len(q) - 1] == hq) {
cnt++;
}
}
if (len(p) <= LIM && len(q) <= LIM) {
ll C = (hp + hq * power[len(p)]) % MOD;
cnt += calc[len(p)][len(q)][C];
// log(calc[len(p)][len(q)][C]);
}
print cnt;
}
}
Compilation message
selling_rna.cpp: In function 'void fast_scan(int&)':
selling_rna.cpp:133:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
void fast_scan(int &x) { scanf("%d", &x); }
~~~~~^~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(long long int&)':
selling_rna.cpp:134:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
void fast_scan(long long &x) { scanf("%lld", &x); }
~~~~~^~~~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(long long unsigned int&)':
selling_rna.cpp:135:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
void fast_scan(unsigned long long &x) { scanf("%llu", &x); }
~~~~~^~~~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(double&)':
selling_rna.cpp:136:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
void fast_scan(double &x) { scanf("%lf", &x); }
~~~~~^~~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(long double&)':
selling_rna.cpp:137:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
void fast_scan(long double &x) { scanf("%Lf", &x); }
~~~~~^~~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(char&)':
selling_rna.cpp:139:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%c", &x);
~~~~~^~~~~~~~~~
selling_rna.cpp: In function 'void fast_scan(std::__cxx11::string&)':
selling_rna.cpp:145:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%s", string_in_buffer);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
48 ms |
17500 KB |
Output is correct |
| 2 |
Correct |
55 ms |
17512 KB |
Output is correct |
| 3 |
Correct |
50 ms |
17496 KB |
Output is correct |
| 4 |
Correct |
48 ms |
17496 KB |
Output is correct |
| 5 |
Correct |
53 ms |
17500 KB |
Output is correct |
| 6 |
Correct |
45 ms |
17508 KB |
Output is correct |
| 7 |
Correct |
52 ms |
17496 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
801 ms |
80432 KB |
Output is correct |
| 2 |
Execution timed out |
1530 ms |
118620 KB |
Time limit exceeded |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
96 ms |
17500 KB |
Output is correct |
| 2 |
Correct |
136 ms |
19052 KB |
Output is correct |
| 3 |
Correct |
126 ms |
17864 KB |
Output is correct |
| 4 |
Correct |
84 ms |
17512 KB |
Output is correct |
| 5 |
Correct |
122 ms |
19064 KB |
Output is correct |
| 6 |
Correct |
113 ms |
17820 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
48 ms |
17500 KB |
Output is correct |
| 2 |
Correct |
55 ms |
17512 KB |
Output is correct |
| 3 |
Correct |
50 ms |
17496 KB |
Output is correct |
| 4 |
Correct |
48 ms |
17496 KB |
Output is correct |
| 5 |
Correct |
53 ms |
17500 KB |
Output is correct |
| 6 |
Correct |
45 ms |
17508 KB |
Output is correct |
| 7 |
Correct |
52 ms |
17496 KB |
Output is correct |
| 8 |
Correct |
801 ms |
80432 KB |
Output is correct |
| 9 |
Execution timed out |
1530 ms |
118620 KB |
Time limit exceeded |
| 10 |
Halted |
0 ms |
0 KB |
- |
