#include<bits/stdc++.h>
using namespace std ;
#define maxn 200009
#define ll long long
#define pb push_back
#define fi first
#define se second
//#define left id<<1
//#define right id<<1|1
#define re exit(0);
#define _lower(x) lower_bound(v.begin(),v.end(),x)-v.begin()+1
#define TIME ( 1.0*clock() / CLOCKS_PER_SEC )
const int mod = 1e9+7 ;
const int INF = 1e9 ;
typedef vector<int> vi ;
typedef pair<int,int> pii ;
typedef vector<pii> vii ;
template < typename T > void chkmin ( T &a , T b ) { if ( a > b ) a = b ; }
template < typename T > void chkmax ( T &a , T b ) { if ( a < b ) a = b ; }
void add ( int &a , int b )
{
a += b ;
if ( a >= mod ) a -= mod ;
if ( a < 0 ) a += mod ;
}
void rf ()
{
freopen ("bai1.inp","r",stdin) ;
}
mt19937 rng (time(0)) ;
int _pow ( int a , int n )
{
if ( n == 0 ) return 1 ;
int res = _pow (a,n/2) ;
if ( n % 2 ) return 1ll*res*res%mod*a%mod ;
else return 1ll*res*res%mod ;
}
int cnt [26] ;
extern int query ( string s ) ;
string dc ( int l , int r )
{
if ( l == r )
{
string res (cnt[l],'a'+l) ;
return res ;
}
int mid = (l+r)/2 ;
string left = dc (l,mid) , right = dc (mid+1,r) ;
if ( left.size () == 0 ) return right ;
if ( right.size () == 0 ) return left ;
string res = "" ;
int i = 0 , j = 0 ;
while ( i<left.size() && j<right.size() )
{
int len = query (res+left[i]+right.substr(j)) ;
int base = res.size () + right.size() - j ;
if ( len > base ) res += left [i++] ;
else res += right [j++] ;
}
if ( i < left.size () ) res += left.substr (i) ;
else res += right.substr (j) ;
return res ;
}
string guess ( int n , int s )
{
for ( int i = 0 ; i < s ; i ++ )
{
string str (n,'a'+i) ;
cnt [i] = query (str) ;
}
return dc (0,s-1) ;
}
//int main ()
//{
// ios_base::sync_with_stdio(0);
// cin.tie(0);cout.tie(0);
//// rf () ;
//}
Compilation message
password.cpp: In function 'std::string dc(int, int)':
password.cpp:60:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | while ( i<left.size() && j<right.size() )
| ~^~~~~~~~~~~~
password.cpp:60:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | while ( i<left.size() && j<right.size() )
| ~^~~~~~~~~~~~~
password.cpp:67:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
67 | if ( i < left.size () ) res += left.substr (i) ;
| ~~^~~~~~~~~~~~~~
password.cpp: In function 'void rf()':
password.cpp:32:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
32 | freopen ("bai1.inp","r",stdin) ;
| ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Guessed the password with 61 queries. |
| 2 |
Correct |
1 ms |
344 KB |
Guessed the password with 101 queries. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Guessed the password with 49 queries. |
| 2 |
Correct |
1 ms |
344 KB |
Guessed the password with 117 queries. |
| 3 |
Correct |
1 ms |
344 KB |
Guessed the password with 92 queries. |
| 4 |
Correct |
1 ms |
440 KB |
Guessed the password with 197 queries. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
948 KB |
Guessed the password with 3456 queries. |
| 2 |
Correct |
24 ms |
960 KB |
Guessed the password with 5025 queries. |
| 3 |
Correct |
26 ms |
704 KB |
Guessed the password with 6352 queries. |
| 4 |
Correct |
53 ms |
724 KB |
Guessed the password with 8693 queries. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Guessed the password with 61 queries. |
| 2 |
Correct |
1 ms |
344 KB |
Guessed the password with 101 queries. |
| 3 |
Correct |
0 ms |
344 KB |
Guessed the password with 49 queries. |
| 4 |
Correct |
1 ms |
344 KB |
Guessed the password with 117 queries. |
| 5 |
Correct |
1 ms |
344 KB |
Guessed the password with 92 queries. |
| 6 |
Correct |
1 ms |
440 KB |
Guessed the password with 197 queries. |
| 7 |
Correct |
17 ms |
948 KB |
Guessed the password with 3456 queries. |
| 8 |
Correct |
24 ms |
960 KB |
Guessed the password with 5025 queries. |
| 9 |
Correct |
26 ms |
704 KB |
Guessed the password with 6352 queries. |
| 10 |
Correct |
53 ms |
724 KB |
Guessed the password with 8693 queries. |
| 11 |
Correct |
72 ms |
720 KB |
Guessed the password with 13638 queries. |
| 12 |
Correct |
59 ms |
732 KB |
Guessed the password with 12459 queries. |
| 13 |
Correct |
68 ms |
1224 KB |
Guessed the password with 14392 queries. |
| 14 |
Correct |
69 ms |
964 KB |
Guessed the password with 13937 queries. |
| 15 |
Correct |
71 ms |
964 KB |
Guessed the password with 15073 queries. |
| 16 |
Correct |
84 ms |
728 KB |
Guessed the password with 14154 queries. |
| 17 |
Correct |
83 ms |
708 KB |
Guessed the password with 16054 queries. |
| 18 |
Correct |
71 ms |
968 KB |
Guessed the password with 15189 queries. |
| 19 |
Correct |
84 ms |
968 KB |
Guessed the password with 16410 queries. |
| 20 |
Correct |
68 ms |
1208 KB |
Guessed the password with 14247 queries. |
| 21 |
Correct |
101 ms |
936 KB |
Guessed the password with 16849 queries. |
| 22 |
Correct |
69 ms |
728 KB |
Guessed the password with 15315 queries. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Guessed the password with 61 queries. |
| 2 |
Correct |
1 ms |
344 KB |
Guessed the password with 101 queries. |
| 3 |
Correct |
0 ms |
344 KB |
Guessed the password with 49 queries. |
| 4 |
Correct |
1 ms |
344 KB |
Guessed the password with 117 queries. |
| 5 |
Correct |
1 ms |
344 KB |
Guessed the password with 92 queries. |
| 6 |
Correct |
1 ms |
440 KB |
Guessed the password with 197 queries. |
| 7 |
Correct |
17 ms |
948 KB |
Guessed the password with 3456 queries. |
| 8 |
Correct |
24 ms |
960 KB |
Guessed the password with 5025 queries. |
| 9 |
Correct |
26 ms |
704 KB |
Guessed the password with 6352 queries. |
| 10 |
Correct |
53 ms |
724 KB |
Guessed the password with 8693 queries. |
| 11 |
Correct |
72 ms |
720 KB |
Guessed the password with 13638 queries. |
| 12 |
Correct |
59 ms |
732 KB |
Guessed the password with 12459 queries. |
| 13 |
Correct |
68 ms |
1224 KB |
Guessed the password with 14392 queries. |
| 14 |
Correct |
69 ms |
964 KB |
Guessed the password with 13937 queries. |
| 15 |
Correct |
71 ms |
964 KB |
Guessed the password with 15073 queries. |
| 16 |
Correct |
84 ms |
728 KB |
Guessed the password with 14154 queries. |
| 17 |
Correct |
83 ms |
708 KB |
Guessed the password with 16054 queries. |
| 18 |
Correct |
71 ms |
968 KB |
Guessed the password with 15189 queries. |
| 19 |
Correct |
84 ms |
968 KB |
Guessed the password with 16410 queries. |
| 20 |
Correct |
68 ms |
1208 KB |
Guessed the password with 14247 queries. |
| 21 |
Correct |
101 ms |
936 KB |
Guessed the password with 16849 queries. |
| 22 |
Correct |
69 ms |
728 KB |
Guessed the password with 15315 queries. |
| 23 |
Correct |
127 ms |
1836 KB |
Guessed the password with 23612 queries. |
| 24 |
Correct |
119 ms |
1860 KB |
Guessed the password with 22226 queries. |
| 25 |
Correct |
116 ms |
1140 KB |
Guessed the password with 23794 queries. |
| 26 |
Correct |
122 ms |
1584 KB |
Guessed the password with 23332 queries. |
| 27 |
Correct |
115 ms |
1560 KB |
Guessed the password with 23763 queries. |
| 28 |
Correct |
110 ms |
1292 KB |
Guessed the password with 23045 queries. |
| 29 |
Correct |
113 ms |
1348 KB |
Guessed the password with 23847 queries. |
| 30 |
Correct |
106 ms |
1508 KB |
Guessed the password with 22506 queries. |
