View Compilation Error

0_0_11593866_29093.cpp: In function `void bfs(int)':
0_0_11593866_29093.cpp:32: error: `y' undeclared (first use this function)
0_0_11593866_29093.cpp:32: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11593866_29093.cpp:32: error: expected `;' before ')' token
0_0_11593866_29093.cpp: In function `int main()':
0_0_11593866_29093.cpp:84: error: `x' undeclared (first use this function)
0_0_11593866_29093.cpp:84: error: `y' undeclared (first use this function)