摘要:
第一次这么晚呀,从晚上十点半开始打,打到凌晨一点回寝,被自己感动到了QAQ 虽然只写了两道水题呵呵哒,要补题,要写DP,要写搜索。 C. Prefixes and Suffixes Description Ivan wants to play a game with you. He picked s 阅读全文
摘要:
Permute Digits Description You are given two positive integer numbers aa and bb. Permute (change order) of the digits of aato construct maximal number 阅读全文
摘要:
487-3279 Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable 阅读全文