제출 #195117

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
195117		FieryPhoenix	크레이피쉬 글쓰는 기계 (IOI12_scrivener)	C++11	컴파일 에러	0 ms	0 KiB

scrivener

#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;
 
void calcAnc(int ind){
  for (int i=1;i<=19;i++){
    if (anc[ind][i-1]==-1)
      anc[ind][i]=-1;
    else
      anc[ind][i]=anc[anc[ind][i-1]][i-1];
  }
}
 
void Init(){
  for (int i=0;i<20;i++)
    anc[0][i]=-1;
}
 
void TypeLetter(char ch){
  if (!started){
    root[0]=0;
    c[0]=ch;
    length[0]=1;
    nex++;
    started=true;
    return;
  }
  length[nex]=length[nex-1]+1;
  c[nex]=ch;
  anc[nex][0]=nex-1;
  calcAnc(nex);
  nex++;
}
 
void UndoCommands(int x){
  length[nex]=length[nex-x];
  c[nex]=c[nex-x];
  anc[nex][0]=anc[nex-x][0];
  calcAnc(nex);
  nex++;
}
 
char GetLetter(int ind){
  ind=length[nex-1]-1-ind;
  int cur=nex-1;
  for (int i=19;i>=0;i--){
    if (((1<<i)&ind)!=0)
      cur=anc[cur][i];
  }
  return c[cur];
}

컴파일 시 표준 에러 (stderr) 메시지

scrivener.cpp: In function 'void TypeLetter(char)':
scrivener.cpp:54:5: error: 'root' was not declared in this scope
     root[0]=0;
     ^~~~
scrivener.cpp:54:5: note: suggested alternative: 'rint'
     root[0]=0;
     ^~~~
     rint