View Compilation Error

0_0_15922813_12072.c: In function 'cat':
0_0_15922813_12072.c:7:1: error: expected expression before '/' token
 // k=x;
 ^
0_0_15922813_12072.c:13:1: error: expected expression before '/' token
 //  if(x==k)
 ^