#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
#define db long double
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vii vector<pii>
#define vll vector<pll>
// #define endl '\n'
#define all(x) x.begin(), x.end()
#define fastio\
ios_base::sync_with_stdio(0);\
cin.tie(0);\
cout.tie(0)\
int query(string str);
#define pci pair<char, int>
map<pair<pci, pci>, bool> memo;
map<char, int> cnt;
bool comp(pair<char, int> a, pair<char, int> b){
if(a.first == b.first){
return a.second < b.second;
}
if(memo.count({a, b})) return memo[{a, b}];
string s = "";
for(int i = 1; i <= a.second; i++){
s += a.first;
}
for(int i = 1; i <= cnt[b.first] - b.second + 1; i++){
s += b.first;
}
return memo[{a, b}] = (query(s) == (int)s.size());
}
string guess(int n, int s){
vector<pci> v;
for(char c = 'a'; c <= char('a'+s-1); c++){
string s1 = "";
for(int j = 1; j <= n; j++){
s1 += c;
}
cnt[c] = query(s1);
for(int j = 1; j <= cnt[c]; j++){
v.push_back({c, j});
}
// cout << c << " : " << cnt[c] << endl;
}
shuffle(all(v), rng);
sort(all(v), comp);
string res = "";
for(auto i : v){
res += i.first;
}
return res;
}
Compilation message
password.cpp: In function 'std::string guess(int, int)':
password.cpp:57:21: error: 'rng' was not declared in this scope
57 | shuffle(all(v), rng);
| ^~~
