View Compilation Error

0_0_18276548_26909.cpp: In function 'void BFS(int, int)':
0_0_18276548_26909.cpp:181:27: error: ambiguating new declaration of 'void BFS(int, int)'
 void BFS (int start,int ed)
                           ^
0_0_18276548_26909.cpp:124:6: note: old declaration 'bool BFS(int, int)'
 bool BFS(int s,int t)
      ^