View Compilation Error

0_0_17265590_11541.cpp:8:1: error: expected initializer before 'void'
 void DFS(int v, int n) { 
 ^
0_0_17265590_11541.cpp: In function 'int main()':
0_0_17265590_11541.cpp:21:10: error: 'degree' was not declared in this scope
   memset(degree,0,sizeof(degree));
          ^
0_0_17265590_11541.cpp:29:10: error: 'DFS' was not declared in this scope
   DFS(1,n);
          ^
0_0_17265590_11541.cpp:37:5: error: expected ';' before 'break'
     break;
     ^
0_0_17265590_11541.cpp:46:13: error: expected '}' at end of input
     return 0;
             ^