摘要:
Girls and BoysTime Limit: 20000/10000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others) 【Problem Description】the second year of the university... 阅读全文
摘要:
PseudoforestTime Limit: 10000/5000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others) 【Problem Description】In graph theory, a pseudoforest is a... 阅读全文