pascal
Problem - D - Codeforces題意： 給長度 N 的 A, B 數列。問是否可以只任意排列 [ L, R ] 區間內的元素，使得 A = B。制約： The first line contains three integers n, l, r (1 ≤ n ≤ 1e5, 1 ≤ l ≤ r ≤ n) — the number of Vasya's cubes and the position…
Problem - D - Codeforces題意： 給長度 N 的 A, B 數列。問是否可以只任意排列 [ L, R ] 區間內的元素，使得 A = B。制約： The first line contains three integers n, l, r (1 ≤ n ≤ 1e5, 1 ≤ l ≤ r ≤ n) — the number of Vasya's cubes and the position…
