View Compilation Error

0_0_11015539_31092.cpp: In function `bool init()':
0_0_11015539_31092.cpp:19: error: `inf' undeclared (first use this function)
0_0_11015539_31092.cpp:19: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11015539_31092.cpp: In function `void solve()':
0_0_11015539_31092.cpp:38: error: `ouf' undeclared (first use this function)