#include <bits/stdc++.h>
using namespace std;
#define pb(x) push_back(x)
#define mp(x,y) make_pair(x,y)
#define vf first
#define vs second
const int N = 1000005;
const int L = 25;
vector<char> v[N];
vector<pair<int,int>> val;
vector<vector<pair<int,int>>> up[N];
void Init(){
val.pb(mp(-1,0));
}
void TypeLetter(char c){
int pos = val.back().vf + 1;
pair<int,int> cur = val.back();
v[pos].pb(c);
val.pb(mp(pos , v[pos].size()-1));
vector<pair<int,int>> x;
x.pb(cur);
for(int i = 1; i < L; i++){
if(cur.vf == -1){
x.pb(mp(-1,0));
}
else {
x.pb(up[cur.vf][cur.vs][i-1]);
cur = up[cur.vf][cur.vs][i-1];
}
}
up[pos].pb(x);
}
void UndoCommands(int u){
val.pb(val[val.size()-u-1]);
}
char GetLetter(int p){
exit();
pair<int,int> cur = val.back();
for(int i = L-1; i > 0; i--){
if(up[cur.vf][cur.vs][i-1].vf > p){
cur = up[cur.vf][cur.vs][i-1];
}
}
if(p!=cur.vf)cur = up[cur.vf][cur.vs][0];
//cout << cur.vf << ' ' << cur.vs << endl;
return v[cur.vf][cur.vs];
}
/*
int main() {
Init();
int cmd_num;
int tmp = scanf("%d", &cmd_num);
assert(tmp == 1);
int i;
for (i = 0; i < cmd_num; i++) {
char cmd;
tmp = scanf(" %c", &cmd);
assert(tmp == 1);
if (cmd == 'T') {
char letter;
tmp = scanf(" %c", &letter);
assert(tmp == 1);
TypeLetter(letter);
}
else if (cmd == 'U') {
int number;
tmp = scanf("%d", &number);
assert(tmp == 1);
UndoCommands(number);
}
else if (cmd == 'P') {
int index;
char letter;
tmp = scanf("%d", &index);
assert(tmp == 1);
letter = GetLetter(index);
printf("%c\n", letter);
}
}
puts("Let's test for cheating!!");
return 0;
}
*/
Compilation message
scrivener.cpp: In function 'char GetLetter(int)':
scrivener.cpp:42:7: error: too few arguments to function 'void exit(int)'
42 | exit();
| ^
In file included from /usr/include/c++/10/bits/std_abs.h:38,
from /usr/include/c++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from scrivener.cpp:1:
/usr/include/stdlib.h:617:13: note: declared here
617 | extern void exit (int __status) __THROW __attribute__ ((__noreturn__));
| ^~~~
