View Compilation Error

0_0_33592927_27296.cpp: In function 'int main()':
0_0_33592927_27296.cpp:59:35: error: 'lower_b' was not declared in this scope
                         int pos = lower_b
                                   ^
0_0_33592927_27296.cpp:59:35: error: expected ',' or ';' at end of input
0_0_33592927_27296.cpp:59:35: error: expected '}' at end of input
0_0_33592927_27296.cpp:59:35: error: expected '}' at end of input
0_0_33592927_27296.cpp:59:35: error: expected '}' at end of input