Submission #169309

#	Time	Username	Problem	Language	Result	Execution time	Memory
169309		AlexLuchianov	크레이피쉬 글쓰는 기계 (IOI12_scrivener)	C11	Compilation error	0 ms	0 KiB

scrivener

int const nmax = 1000000;

int far[20][1 + nmax], ptr = 0;
int level[1 + nmax];
char chr[1 + nmax];

void Init() {}

void TypeLetter(char L) {
  ++ptr;
  far[0][ptr] = ptr - 1;
  for(int h = 1; h < 20; h++)
    far[h][ptr] = far[h - 1][far[h - 1][ptr]];
  level[ptr] = level[far[0][ptr]] + 1;
  chr[ptr] = L;
}

void UndoCommands(int U) {
  ++ptr;
  far[0][ptr] = ptr - 1 - U;
  for(int h = 1; h < 20; h++)
    far[h][ptr] = far[h - 1][far[h - 1][ptr]];
  level[ptr] = level[far[0][ptr]];
}

char GetLetter(int P) {
  int pos = ptr;
  P++;
  for(int h = 19; 0 <= h; h--)
    if(P <= level[far[h][pos]] )
      pos = far[h][pos];
  return chr[pos];
}

Compilation message (stderr)

scrivener.c:3:5: error: variably modified 'far' at file scope
 int far[20][1 + nmax], ptr = 0;
     ^~~
scrivener.c:4:5: error: variably modified 'level' at file scope
 int level[1 + nmax];
     ^~~~~
scrivener.c:5:6: error: variably modified 'chr' at file scope
 char chr[1 + nmax];
      ^~~