View Compilation Error

0_0_37934736_17008.cpp: In function 'bool bfs1(int)':
0_0_37934736_17008.cpp:50:6: error: redefinition of 'bool bfs1(int)'
 bool bfs1(int k)
      ^
0_0_37934736_17008.cpp:14:6: note: 'bool bfs1(int)' previously defined here
 bool bfs1(int k)
      ^
0_0_37934736_17008.cpp: In function 'int main()':
0_0_37934736_17008.cpp:108:34: error: 'bfs2' was not declared in this scope
             if (bfs1(i) || bfs2(i))
                                  ^