摘要： Fox Ciel wants to write a task for a programming contest. The task is: "You are given a simple undirected ... 阅读全文

摘要： You are given a sequence a consisting of n integers. Find the maximum possible value of (integer remainde... 阅读全文

摘要： After having drifted about in a small boat for a couple of days, Akira Crusoe Maeda was finally cast ashor... 阅读全文

摘要： You have just moved from a quiet Waterloo neighbourhood to a big, noisy city. Instead of getting to ride y... 阅读全文

摘要： G-String ProblemBoy Valera likes strings. And even more he likes them, when they are identical. That's wh... 阅读全文

摘要： During the kindergarten days, flymouse was the monitor of his class. Occasionally the head-teacher brought... 阅读全文

摘要： A palindromic number or numeral palindrome is a 'symmetrical' number like 16461 that remains the same when... 阅读全文

摘要： Here is a function f(x): int f ( int x ) { if ( x == 0 ) return 0; return f ( x / 10 ) + x %... 阅读全文

摘要： A balanced number is a non-negative integer that can be balanced if a pivot is placed at some digit. More ... 阅读全文

摘要： A wqb-number, or B-number for short, is a non-negative integer whose decimal form contains the sub- string... 阅读全文