1.12 字符反转： Sample Input 3 olleh !dlrow m’I morf .udh I ekil .mcaSample Output hello world! I’m from hdu. I like acm. 好久没有用 STL ，于是想到了string 数组的使用 ，还有reverse（s.begin(),s.end()）, 发现不行 ， 在这个题里

题意： ACM: 1*1 + 2*3 + 3*13 = 46MID CENTRAL: 1*13 + 2*9 + 3*4 + 4*0 + 5*3 + 6*5 + 7*14 + 8*20 + 9*18 + 10*1 + 11*12 = 650 ACM MID CENTRAL REGIONAL PROGRAMMING CONTEST ACN A C M ABC BBC #

Leftmost Digit Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3677 Accepted Submission(s): 1631   Problem Description Gi

Problem Description The Joseph's problem is notoriously known. For those who are not familiar with the original problem: from among n people, numbered 1, 2, . . ., n, standing in circle every mth is

Problem Description A friend of you is doing research on the Traveling Knight Problem (TKP) where you are to find the shortest closed tour of knight moves that visits each square of a given set of n