View Compilation Error

0_0_37711542_5303.cpp: In function 'void push(int, int, int, int)':
0_0_37711542_5303.cpp:31:11: error: a function-definition is not allowed here before '{' token
 bool dfs(){
           ^
0_0_37711542_5303.cpp:98:1: error: expected '}' at end of input
 }
 ^