#include<bits/stdc++.h>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef double db;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define pbds tree<pair<int, int>, null_type, less<pair<int, int>>,rb_tree_tag, tree_order_statistics_node_update>
using namespace __gnu_pbds;
ll gcd(ll a , ll b) {return b ? gcd(b , a % b) : a ;} // greatest common divisor (PGCD)
ll lcm(ll a , ll b) {return (a * b) / gcd(a , b);} // least common multiple (PPCM)
int dx[8] = {1, 0, 0, -1, 1, 1, -1, -1};
int dy[8] = {0, 1, -1, 0, 1, -1, -1, 1};
#define endl "\n"
#define ss second
#define ff first
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define vi vector<int>
#define vii vector<pair<int,int>>
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pdd pair<double,double>
#define vdd vector<pdd>
#define speed ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
////////////////////Only Clear Code//////////////////////////
void init(){
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif // ONLINE_JUDGE
}
const int mx = 1e6+9;
const int LOG = 25;
const ll inf = 1e18;
const ll mod = 1e9+7;
int freq[30];
int query(string str);
string guess(int n, int s){
for(int i = 0; i < s;i++){
char x = i+'a';
string c = string(1, x);
for(int j = 0; j < n;j++){
int res = query(c);
if(res == c.size())freq[i]++;
else break;
c += x;
}
}
string c = "";
for(int i = 0; i < s;i++){
char x = i+'a';
if(freq[i] != 0){
int k = freq[i];
while(k--){
c += x;
}
freq[i] = 0;
break;
}
}
for(int i = 0; i < s;i++){
if(freq[i] == 0)continue;
char x = i+'a';
int last = 0;
int k = freq[i];
while(k--){
int l = 0, r = c.size();
int ind = 0;
while(l <= r){
int md = (l+r)/2;
string temp = c;
temp.insert(md, string(1, x));
int b = query(temp);
if(b >= md+1){
ind = md;
l = md+1;
}
else{
r = md-1;
}
}
//last = ind;
c.insert(ind, string(1, x));
}
//freq[i] = 0;
}
return c;
}
/*
void run_case(){
cout << guess(4, 4) << endl;
}
int main(){
init();
speed;
int t;
//cin >> t;
t = 1;
while(t--){
run_case();
}
}*/
/*
NEVER GIVE UP!
DOING SMTHNG IS BETTER THAN DOING NTHNG!!!
Your Guide when stuck:
- Continue keyword only after reading the whole input
- Don't use memset with testcases
- Check for corner cases(n=1, n=0)
- Check where you declare n(Be careful of declaring it globally and in main)
*/
Compilation message
password.cpp: In function 'std::string guess(int, int)':
password.cpp:57:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
57 | if(res == c.size())freq[i]++;
| ~~~~^~~~~~~~~~~
password.cpp:78:13: warning: unused variable 'last' [-Wunused-variable]
78 | int last = 0;
| ^~~~
password.cpp: In function 'void init()':
password.cpp:35:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
35 | freopen("input.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
password.cpp:37:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
37 | freopen("output.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
300 KB |
Execution killed with signal 13 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
208 KB |
Returned early from guess() after 188 queries. |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
49 ms |
424 KB |
Returned early from guess() after 9590 queries. |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
300 KB |
Execution killed with signal 13 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
300 KB |
Execution killed with signal 13 |
| 2 |
Halted |
0 ms |
0 KB |
- |
