Decrypt

input/code.cpp: In function 'int main()':
input/code.cpp:26:13: warning: array subscript has type 'char' [-Wchar-subscripts]
     OOliOO[c]++;
             ^
input/code.cpp:27:10: warning: array subscript has type 'char' [-Wchar-subscripts]
     asd[c][0] = x;
          ^
input/code.cpp:29:17: warning: array subscript has type 'char' [-Wchar-subscripts]
     if (OOliOO[c] > 1) cout<<"impossible"<<endl, exit(0);
                 ^
input/code.cpp:38:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for (int j = 0; j < t.length(); j++) {
                                    ^
input/code.cpp:39:17: warning: array subscript has type 'char' [-Wchar-subscripts]
  t[j] = asd[t[j]][i];
                 ^

#include <bits/stdc++.h>
#define ll long long
#define N (1<<17)
#define ld long double
#define F first
#define S second
#define INF 1000111000
#define M 1000000007

using namespace std;

int OOliOO[255];
int asd[255][31];

int main () {
  cin.sync_with_stdio(false);
  cin.tie(0);
  string s;
  cin>>s;
  int k;
  cin>>k;
  string t;
  cin>>t;
  int x = 'a';
  for (char c : s) {
    OOliOO[c]++;
    asd[c][0] = x;
    x++;
    if (OOliOO[c] > 1) cout<<"impossible"<<endl, exit(0);
  }
  for (int i = 1; i < 31; i++) {
    for (int j = 'a'; j <= 'z'; j++) {
      asd[asd[j][i - 1]][i] = asd[j][i - 1];
    }
  }
  for (int i = 0; i < 31; i++) {
    if (k & (1<<i)) {
      for (int j = 0; j < t.length(); j++) {
	t[j] = asd[t[j]][i];
      }
    }
  }
  cout<<t<<endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: ACCEPTED

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: ACCEPTED

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: ACCEPTED

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: ACCEPTED

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: ACCEPTED

Test 18

Verdict: WRONG ANSWER

Test 19

Verdict: ACCEPTED

Test 20

Verdict: ACCEPTED

Test 21

Verdict: WRONG ANSWER

Test 22

Verdict: WRONG ANSWER

Test 23

Verdict: ACCEPTED

Test 24

Verdict: ACCEPTED

Test 25

Verdict: ACCEPTED

Test 26

Verdict: ACCEPTED

Test 27

Verdict: WRONG ANSWER

Test 28

Verdict: WRONG ANSWER

Test 29

Verdict: ACCEPTED

Test 30

Verdict: ACCEPTED