View Compilation Error

0_0_12821765_14359.cpp: In function `void dfs(int, int, int)':
0_0_12821765_14359.cpp:25: error: expected primary-expression before "if"
0_0_12821765_14359.cpp:25: error: return-statement with a value, in function returning 'void'
0_0_12821765_14359.cpp:25: error: expected `;' before "if"
0_0_12821765_14359.cpp:27: error: `p' undeclared (first use this function)
0_0_12821765_14359.cpp:27: error: (Each undeclared identifier is reported only once for each function it appears in.)