View Compilation Error

0_0_4720898_30580.cpp: In function `void dfs(int)':
0_0_4720898_30580.cpp:81: error: new declaration `void dfs(int)'
0_0_4720898_30580.cpp:20: error: ambiguates old declaration `bool dfs(int)'
0_0_4720898_30580.cpp: In function `void dfs(int)':
0_0_4720898_30580.cpp:86: error: expected primary-expression before "else"
0_0_4720898_30580.cpp:86: error: expected `;' before "else"