摘要:
F. 符号三角形 Time Limit: 1000ms Memory Limit: 32768KB 64-bit integer IO format: Java class name: 符号三角形的 第1行有n个由“+”和”-“组成的符号 ,以后每行符号比上行少1个,2个同号下面是”+“,2个异 号 阅读全文
摘要:
L. Find a way Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to meet. 阅读全文