Bittilista

input/code.cpp: In function 'int main()':
input/code.cpp:9:19: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   int b=k>=1ULL<<n-2;
                   ^
input/code.cpp:9:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   int b=k>=1ULL<<n-2;
          ^

#include <iostream>
#include <string>

int main() {
  int n,k;std::cin>>n>>k,--k;
  if(n<2)return std::cout<<k<<'\n',0;
  std::string s;
  for(int i=n-2;i--;s+=k>>i&1?'1':'0');
  int b=k>=1ULL<<n-2;
  std::cout<<b<<s<<b<<'\n';
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: WRONG ANSWER

Test 12

Group: 3

Verdict: WRONG ANSWER

Test 13

Group: 3

Verdict: WRONG ANSWER

Test 14

Group: 3

Verdict: WRONG ANSWER

Test 15

Group: 3

Verdict: WRONG ANSWER