Submission #124829

#	Time	Username	Problem	Language	Result	Execution time	Memory
124829		nxteru	Crayfish scrivener (IOI12_scrivener)	C++14	Compilation error	0 ms	0 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
int le[1000005],n,k,ch[27][1000005],par[20][1000005],dp[100005];
char re[1000005];
void Init(void);
void TypeLetter(char c) {
	int v=le[n],x=c-'a';
	if(ch[x][v]==0){
		ch[x][v]=k;
		re[k]=c;
		par[0][k]=v;
		dp[k]=dp[v]+1;
		for(int i=0;i<19;i++)par[i][k]=par[i][par[i][k]];
		k++;
	}
	v=ch[x][v];
	n++;
	le[n]=v;
}
void UndoCommands(int x) {
	le[n+1]=le[n-x];
	n++;
}
char GetLetter(int x) {
	int v=le[n];
	for(int i=0;i<20;i++)if((dp[v]-x)>>i&1)v=par[i][v];
	return re[v];
}

Compilation message (stderr)

/tmp/cc4d1I2m.o: In function `main':
grader.cpp:(.text.startup+0x5d): undefined reference to `Init()'
collect2: error: ld returned 1 exit status