제출 #361462

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
361462		NachoLibre	Crayfish scrivener (IOI12_scrivener)	C++17	60 / 100	1080 ms	170184 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("-Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#ifndef wambule
// #include ".h"
#else
#endif

const int N = 1000006;
const int L = 21;

struct ovo {
	vector<ovo*> v;
	ovo *up[L];
	int dt;
	char c;
	ovo() {}
	ovo(ovo *op, char _c) {
		c = _c;
		dt = op->dt + 1;
		v.clear();
		up[0] = op;
		for(int i = 1; i < L; ++i)  {
			up[i] = up[i - 1];
			if(up[i] != NULL) up[i] = up[i]->up[i - 1];
		}
	}

	ovo* A(char c) {
		v.push_back(new ovo(this, c));
		return *(--v.end());
	}
} rt, *dg;
vector<ovo*> v;

void Init() {
	rt.c = ' ';
	rt.dt = -1;
	rt.v.clear();
	for(int i = 0; i < L; ++i) {
		rt.up[i] = NULL;
	}
	dg = &rt;
}

void TypeLetter(char c) {
	dg = dg->A(c);
	v.push_back(dg);
}

void UndoCommands(int x) {
	dg = v[(int)v.size() - 1 - x];
	v.push_back(dg);
}

char GetLetter(int id) {
	ovo *x = dg;
	for(int i = L - 1; i >= 0; --i) {
		if(x->up[i] != NULL && x->up[i]->dt >= id) {
			x = x->up[i];
		}
	}
	#ifdef wambule
	cout << "[:] " << x->c << endl;
	#endif
	return x->c;
}

#ifdef wambule
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	Init();
	TypeLetter('a');
	TypeLetter('b');
	GetLetter(1);
	TypeLetter('d');
	UndoCommands(2);
	UndoCommands(1);
	GetLetter(2);
	TypeLetter('e');
	UndoCommands(1);
	UndoCommands(5);
	TypeLetter('c');
	GetLetter(2);
	UndoCommands(2);
	GetLetter(2);
	return 0;
}
#endif

컴파일 시 표준 에러 (stderr) 메시지

scrivener.cpp:3: warning: ignoring #pragma comment  [-Wunknown-pragmas]
    3 | #pragma comment(linker, "/stack:200000000")
      |

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 26 / 26
• Subtask 5: 0 / 40