题目描述 Consider a queue with N people, each of a differen […]
1551: 15-Puzzle Problem
题目描述 The 15-puzzle is a very popular game: you have cer […]
1550: Little Bishops
题目描述 Little Bishops A bishop is a piece used in the gam […]
1549: Repackaging
题目描述 Coffee cups of three different sizes (size 1, size […]
1548: Marbles
题目描述 I collect marbles (colorful small glass balls) and […]
1547: Smith Numbers
题目描述 Smith Numbers While skimming his phone directory i […]
1546: Summation of Four Primes
题目描述 Waring's prime number conjecture states that […]
1545: Factovisors
题目描述 The factorial function, n! is defined as follows f […]
1544: Euclid problem
题目描述 From Euclid, it is known that for any positive int […]
1543: Carmichael Numbers
题目描述 Certain cryptographic algorithms make use of big p […]