View Compilation Error

0_0_8922474_14049.cpp: In function `void Tarjan(int)':
0_0_8922474_14049.cpp:36: error: `elseif' undeclared (first use this function)
0_0_8922474_14049.cpp:36: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8922474_14049.cpp:36: error: expected `;' before '{' token