View Compilation Error

0_0_10800634_3495.cpp: In function `void work()':
0_0_10800634_3495.cpp:18: error: `cnt1' undeclared (first use this function)
0_0_10800634_3495.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10800634_3495.cpp:19: error: `cnt2' undeclared (first use this function)