View Compilation Error

0_0_30685504_22425.cpp:46:13: error: empty character constant
   s[top++]=y''
             ^
0_0_30685504_22425.cpp: In function 'int main()':
0_0_30685504_22425.cpp:46:13: error: expected ';' before '\x0'
0_0_30685504_22425.cpp:86:1: error: expected '}' at end of input
 }
 ^
0_0_30685504_22425.cpp:86:1: error: expected '}' at end of input