View Compilation Error

0_0_21868521_29296.cpp: In function 'void DFS(int)':
0_0_21868521_29296.cpp:28:1: error: a function-definition is not allowed here before '{' token
 {  
 ^
0_0_21868521_29296.cpp:40:1: error: expected '}' at end of input
 }
 ^