摘要：
Tunnel WarfareTime Limit: 4000/2000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2392Accepted Submission(s): 882Problem DescriptionDuring the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally 阅读全文
