View Compilation Error

0_0_40035405_9597.cpp: In function 'int main()':
0_0_40035405_9597.cpp:14:59: error: unable to find numeric literal operator 'operator""c'
   14 |                 for(int i=1;i<=n;i++)b[i].reset(),b[i][i]=1c[i]=0;
      |                                                           ^~
0_0_40035405_9597.cpp:14:59: note: use '-fext-numeric-literals' to enable more built-in suffixes