Submission #759607

#	Time	Username	Problem	Language	Result	Execution time	Memory
759607		aykhn	Crayfish scrivener (IOI12_scrivener)	C++14	Compilation error	0 ms	0 KiB

scrivener

#include <bits/stdc++.h>
 
// author: aykhn

using namespace std;

typedef long long ll;

#define pii pair<int, int>
#define mpr make_pair
#define eb emplace_back
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define ins insert
#define int ll
#define inf 0x3F3F3F3F
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount

string s;
vector<pair<int, char>> calls;
int x;

string f(int i)
{
    if (i < 0) return "";
    
    if (calls[i].fi == 1) return f(i - 1) + calls[i].se;
    
    return f(i - 1 - calls[i].se);
}

void Init() 
{
    s = "";
}

void TypeLetter(char L) 
{
    calls.pb(mpr(1, L));
}

void UndoCommands(int U) 
{
    calls.pb(mpr(2, U));
}

char GetLetter(int P) 
{
    x++;
    if (x == 1)
    {
        s = f(calls.size() - 1);
    }
    
    return s[P];
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cckYgXxN.o: in function `main':
grader.cpp:(.text.startup+0x15f): undefined reference to `UndoCommands(int)'
/usr/bin/ld: grader.cpp:(.text.startup+0x18b): undefined reference to `GetLetter(int)'
collect2: error: ld returned 1 exit status