Problem Description There are many students in PHT School. One day, the headmaster whose name is PigHeader wanted all students stand in a line. He prescribed ...
Problem Description We divide the HZNU Campus into N*M grids. As you can see from the picture below, the green grids represent the buidings. Given the size of...
Problem Description You are the CEO of Nasty Hacks Inc., a company that creates small pieces of malicious software which teenagers may use to fool their fri...
Problem Description Roy has just moved into a new apartment. Well, actually the apartment itself is not very new, even dating back to the days before people h...
Problem Description One day, winnie received a box and a letter. In the letter, there are three integers and five operations(+,-,*,/,%). If one of the three i...
“Waiting for orders we held in the wood, word from the front never came By evening the sound of the gunfire was miles away Ah softly we moved through the sh...
Once upon a time, in the Kingdom of Loowater, a minor nuisance turned into a major problem.The shores of Rellau Creek in central Loowater had always been a prim...
Problem Description background: A new semester comes , and the HDU also meets its 50th birthday. No matter what’s your major, the only thing I want to tell ...
Problem Description Happy new year to everybody! Now, I want you to guess a minimum number x betwwn 1000 and 9999 to let (1) x % a = 0; (2) (x+1) % b = ...
