답안 #97926

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
97926 2019-02-19T14:24:19 Z Jatana Selling RNA Strands (JOI16_selling_rna) C++17
60 / 100
1500 ms 272512 KB
/*
                                                                                                     
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                       ..`-.   `-.   ``:os:o/:---...---:++.  `-     ``///+:-..``````.--:+-````-.`   
              `.:///////.-`      .:-..` -``-+o+/:::::/+o/.  `-         `:+:-..`````..--:o/:--/ys+-  
            `-++///////+o/. ``....`-.    :` `.:++++++/:.`  .-           -o/---......---/o.   `.`    
           `++//:-----::/+o:..`     .-`   :    ```````    .-           `+so+:--------:++-`          
  `````:-``:o/::-..`..--:/+o`         -.  `-             .-          `../../+o+////+o+:.`           
  -----syo/o+/:--.```..-://s.          .-` `-           .-        `...     ``-:////:-``             
       .` `/s//:--....-::/+s.            -. `-`        .-       `..`                                
           .+o+/:::--:://+s/-..`          .::+y  ```  .-     `..`                                   
            ./oo++////+oso-`   `....       :y-+:::::::/`   ...                                      
             `.:+oooooo/-`         `....-. .//:-------:/:-.`                                        
                ``...``                 /+:+:--.......--:+`                                         
                                         `+:--..`````..--//`                                        
                                         .o:--..`` ``..--:o`                                        
                                         .+/--...```..--:+/`                                        
                                         `-o/:---...---:++.                                         
                                          `-+o+/:---:/+o/.                                          
                                            `.:+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 = 10000000000000061;
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;
		}
	}
};

ll mul(ll a, ll b) {
	__int128 x = a;
	__int128 y = b;
	x *= y;
	__int128 __module = MOD;
	return x % __module;
}

const int LIM = 75;

unordered_map<ll, int> calc;

signed main(signed argc, char *argv[]) {
	calc.rehash((int)2e7);
	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 + mul(B, power[a + 1])) % MOD;
					calc[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 + mul(hq, power[len(p) + 1])) % MOD;
			cnt += calc[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);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 227 ms 181464 KB Output is correct
2 Correct 219 ms 181536 KB Output is correct
3 Correct 229 ms 181504 KB Output is correct
4 Correct 242 ms 181468 KB Output is correct
5 Correct 225 ms 181472 KB Output is correct
6 Correct 231 ms 181564 KB Output is correct
7 Correct 226 ms 181468 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 560 ms 222616 KB Output is correct
2 Correct 1473 ms 249100 KB Output is correct
3 Correct 843 ms 232692 KB Output is correct
4 Correct 1225 ms 250020 KB Output is correct
5 Correct 1190 ms 244092 KB Output is correct
6 Correct 1188 ms 244136 KB Output is correct
7 Correct 601 ms 204636 KB Output is correct
8 Correct 655 ms 212440 KB Output is correct
9 Correct 693 ms 212416 KB Output is correct
10 Correct 927 ms 212384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 285 ms 181468 KB Output is correct
2 Correct 350 ms 182512 KB Output is correct
3 Correct 326 ms 181568 KB Output is correct
4 Correct 266 ms 181724 KB Output is correct
5 Correct 357 ms 182464 KB Output is correct
6 Correct 358 ms 181556 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 227 ms 181464 KB Output is correct
2 Correct 219 ms 181536 KB Output is correct
3 Correct 229 ms 181504 KB Output is correct
4 Correct 242 ms 181468 KB Output is correct
5 Correct 225 ms 181472 KB Output is correct
6 Correct 231 ms 181564 KB Output is correct
7 Correct 226 ms 181468 KB Output is correct
8 Correct 560 ms 222616 KB Output is correct
9 Correct 1473 ms 249100 KB Output is correct
10 Correct 843 ms 232692 KB Output is correct
11 Correct 1225 ms 250020 KB Output is correct
12 Correct 1190 ms 244092 KB Output is correct
13 Correct 1188 ms 244136 KB Output is correct
14 Correct 601 ms 204636 KB Output is correct
15 Correct 655 ms 212440 KB Output is correct
16 Correct 693 ms 212416 KB Output is correct
17 Correct 927 ms 212384 KB Output is correct
18 Correct 285 ms 181468 KB Output is correct
19 Correct 350 ms 182512 KB Output is correct
20 Correct 326 ms 181568 KB Output is correct
21 Correct 266 ms 181724 KB Output is correct
22 Correct 357 ms 182464 KB Output is correct
23 Correct 358 ms 181556 KB Output is correct
24 Execution timed out 1561 ms 272512 KB Time limit exceeded
25 Halted 0 ms 0 KB -