View Compilation Error

0_0_10731562_27553.cpp: In function `void query_min(int, int, int)':
0_0_10731562_27553.cpp:94: error: `tm' undeclared (first use this function)
0_0_10731562_27553.cpp:94: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10731562_27553.cpp: In function `int main()':
0_0_10731562_27553.cpp:155: error: `tm' undeclared (first use this function)