이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#pragma GCC optimize("O3,Ofast,unroll-loops")
#pragma GCC target("avx2,sse3,sse4,avx")
#define ll long long
#define ull unsigned long long
#define endl '\n'
#define vi vector<int>
#define vpii vector<pair<int,int> >
#define umap unordered_map
#define uset unordered_set
#define mk make_pair
#define pb push_back
#define pob pop_back
#define all(x) x.begin(),x.end()
#define allr(x) x.rbegin(),x.rend()
#define read(x) for (auto& zu: (x)) cin >> zu;
#define F first
#define S second
#define mustawa ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr)
#define pii pair<int,int>
#define mishari main
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<class T> using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
const int inf=1e9+7;
void fa(bool ok){ cout << (ok ? "Yes": "No") << "\n";}
int pw(int a,int b,int mod=inf){
int res=1;
while(b){
if(b&1){
res=(res*a)%mod;
}a=(a*a)%mod;
b>>=1;
}return res;
}vector<string>s;
int i;
void Init(){
return;
}
void TypeLetter(char L){
i++;
s[i]=s[i-1];
s[i]+=L;
}
void UndoCommands(int U){
i++;
s[i]=s[i-U];
}
char GetLetter(int P){
return s[i][P-1];
}
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