View Compilation Error

0_0_8776625_24328.cpp: In function `void solve1(int, int, int, int)':
0_0_8776625_24328.cpp:37: error: `tm' undeclared (first use this function)
0_0_8776625_24328.cpp:37: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8776625_24328.cpp: In function `void solve2(int, int, int, int)':
0_0_8776625_24328.cpp:61: error: `tm' undeclared (first use this function)