摘要：
Description In a k bit 2's complement number, where the bits are indexed from 0 to k-1, the weight of the most significant bit (i.e., in position k-1) 阅读全文
摘要：
Description The 2D-Nim board game is played on a grid, with pieces on the grid points. On each move, a player may remove any positive number of contig 阅读全文
摘要：
Description Nahid Khaleh decides to invite the kids of the "Shahr-e Ghashang" to her wedding anniversary. She wants to prepare a square-shaped chocola 阅读全文