implement bisect
implement bisect

everyevery/programming_study,everyevery/programming_study,everyevery/algorithm_code,everyevery/programming_study,everyevery/algorithm_code,everyevery/algorithm_code,everyevery/algorithm_code,everyevery/algorithm_code,everyevery/algorithm_code,everyevery/programming_study,everyevery/algorithm_code,everyevery/programming_study,everyevery/programming_study,everyevery/programming_study,everyevery/algorithm_code,everyevery/programming_study,everyevery/algorithm_code