有时间也搞搞算法！

Ignatius and the Princess IITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6465 Accepted Submission(s): 3826Problem Description Now our he

Backward Digit Sums Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5752 Accepted: 3335Description FJ and his cows enjoy playing a mental game. They write down the numbers from 1

ID Codes Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 6565 Accepted: 3905Description It is 2084 and the year of Big Brother has finally arrived, albeit(虽然) a century late. In

Orders Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 10086 Accepted: 6108Description The stores manager has sorted all kinds of goods in an alphabetical order of their label