摘要：
2007/2008 ACM International Collegiate Programming ContestUniversity of Ulm Local ContestProblem F: Frequent valuesYou are given a sequence ofnintegersa1, a2, ... , anin non-decreasing order. In addition to that, you are given several queries consisting of indicesiandj(1 ≤ i ≤ j ≤ n). For each query 阅读全文
