View Compilation Error

0_0_11561575_10419.cpp: In function `void fun(int)':
0_0_11561575_10419.cpp:22: error: `tm' undeclared (first use this function)
0_0_11561575_10419.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11561575_10419.cpp: In function `int main()':
0_0_11561575_10419.cpp:46: error: `tm' undeclared (first use this function)