摘要:
题目链接: http://exercise.acmcoder.com/online/online_judge_ques?ques_id=719&konwledgeId=136 解题思路: f[i][j]=f[i-1][j-1]+f[i-1][j+1]; f[0][1]=1; 阅读全文
摘要:
题目链接: http://exercise.acmcoder.com/online/online_judge_ques?ques_id=1668&konwledgeId=136 解题思路: f[n]=f[n-1]+f[n-2]。 阅读全文
摘要:
题目链接: http://exercise.acmcoder.com/online/online_judge_ques?ques_id=1662&konwledgeId=135 解题思路: 线段树。 阅读全文
摘要:
题目链接: http://exercise.acmcoder.com/online/online_judge_ques?ques_id=1683&konwledgeId=135 解题思路: 并查集。 阅读全文
摘要:
题目链接: http://exercise.acmcoder.com/online/online_judge_ques?ques_id=1677&konwledgeId=135 解题思路: 暴力。 阅读全文