View Compilation Error

0_0_3005585_21580.cpp: In function `void Solve()':
0_0_3005585_21580.cpp:159: error: `ans1' undeclared (first use this function)
0_0_3005585_21580.cpp:159: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3005585_21580.cpp:159: error: `ans2' undeclared (first use this function)