Submission #815707

#	Time	Username	Problem	Language	Result	Execution time	Memory
815707		annabeth9680	Crayfish scrivener (IOI12_scrivener)	C++17	Compilation error	0 ms	0 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6+25;
int curop,sz;
char arr[MAXN];
int ops[MAXN],par[MAXN][20],dep[MAXN];
void init(){
    curop = 1;
    sz = 1;
    ops[curop] = 1;
    dep[sz] = 0;
    for(int i = 0;i<20;++i){
        par[1][i] = 1;
    }
}
void TypeLetter(char L){
    curop++; sz++;
    ops[curop] = sz;
    arr[sz] = L;
    dep[sz] = dep[ops[curop-1]]+1;
    par[sz][0] = ops[curop-1];
    for(int i = 0;i<20;++i){
        par[sz][i] = par[par[sz][i-1]][i-1];
    }
}
void UndoCommands(int U){
    curop++;
    ops[curop] = ops[curop-U-1];
}
char GetLetter(int P){
    P++; int cur = ops[curop];
    int d = dep[cur]-P;
    for(int i = 0;i<20;++i){
        if((d >> i)&1){
            cur = par[cur][i];
        }
    }
    return arr[cur];
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccj6Er05.o: in function `main':
grader.cpp:(.text.startup+0x63): undefined reference to `Init()'
collect2: error: ld returned 1 exit status