oj.uz

답안 #195704

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
195704 2020-01-16T23:01:48 Z FieryPhoenix 크레이피쉬 글쓰는 기계 (IOI12_scrivener) C++11
5 / 100
 875 ms 67864 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <map>
#include <queue>
#include <set>
#include <iomanip>
#include <deque>
#include <cassert>
#include <ctime>
#include <cstring>
#include <cstdlib>
#include <chrono>
#include <ctime>
#include <random>
#include <stack>
#include <unordered_set>
#include <unordered_map>
#include <iterator>
#include <climits>
//#include "scrivener.h"
using namespace std;
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
typedef long double ld;
#define INF 2001001001
#define MOD 1000000007
 
int nex;
int length[1000001];
char c[1000001];
int anc[1000001][20];
bool started=false;
int LOG[1000001];
int point[1000001];

void calcAnc(int ind){
  for (int i=1;i<=LOG[length[ind]];i++){
    if (anc[ind][i-1]==-1 || i-1>LOG[length[point[anc[ind][i-1]]]])
      anc[ind][i]=-1;
    else
      anc[ind][i]=point[anc[point[anc[ind][i-1]]][i-1]];
  }
}
 
void Init(){
  for (int i=0;i<=1000000;i++)
    point[i]=i;
  anc[0][0]=-1;
  for (int i=0;i<20;i++)
    LOG[1<<i]=i;
  for (int i=1;i<=1000000;i++)
    if (LOG[i]==0)
      LOG[i]=LOG[i-1];
}
 
void TypeLetter(char ch){
  if (!started){
    c[0]=ch;
    length[0]=1;
    nex++;
    started=true;
    return;
  }
  length[nex]=length[point[nex-1]]+1;
  c[nex]=ch;
  anc[nex][0]=point[nex-1];
  calcAnc(nex);
  nex++;
}
 
void UndoCommands(int x){
  point[nex]=point[nex-1];
  nex++;
}
 
char GetLetter(int ind){
  ind=length[nex-1]-1-ind;
  int cur=nex-1;
  cur=point[cur];
  for (int i=LOG[length[point[cur]]];i>=0;i--){
    if (((1<<i)&ind)!=0)
      cur=point[anc[cur][i]];
  }
  return c[cur];
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 8184 KB Output is correct
2 Correct 12 ms 8184 KB Output is correct
3 Correct 12 ms 8184 KB Output is correct
4 Correct 12 ms 8312 KB Output is correct
5 Correct 12 ms 8188 KB Output is correct
6 Correct 12 ms 8184 KB Output is correct
7 Correct 12 ms 8184 KB Output is correct
8 Correct 12 ms 8184 KB Output is correct
9 Correct 12 ms 8184 KB Output is correct
10 Correct 12 ms 8184 KB Output is correct

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 12 ms 8184 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 13 ms 8284 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 612 ms 67864 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 875 ms 62840 KB Output isn't correct
2 Halted 0 ms 0 KB -