View Compilation Error

0_0_34745877_28419.cpp: In function 'void dfs(int, int)':
0_0_34745877_28419.cpp:71:12: error: a function-definition is not allowed here before '{' token
 int main() {
            ^
0_0_34745877_28419.cpp:126:1: error: expected '}' at end of input
 }
 ^