摘要： UVA 1468 Description Mr. Kim is planning to open a new restaurant. His city is laid out as a grid with size MxM. Therefore, every road is horizontal o 阅读全文

摘要： UVA___10535 The shooter is in a great problem. He is trapped in a “2D” maze with a laser gun and can use it once. The gun is very powerful and the las 阅读全文