Hello Codeforces team, I received a warning regarding my submission 366977261 for problem 2204D. I want to clarify that I did not copy code from any participant and did not use any public code-sharing platforms such as ideone. The idea I used is simply a bipartite graph check using BFS/DFS coloring, which is a standard approach and also appears in the well-known problem https://leetcode.com/problems/is-graph-bipartite/description/ (LeetCode 785) on LeetCode. Because this algorithm is very common, many implementations may look similar. I kindly request a manual review of my submission. Thank you.

I solved the problem 2189C1 independently using a constructive approach based on simple mathematical observations and bitwise XOR properties. The idea is to pair values using i ^ 1, which deterministically satisfies the required condition for all valid indices. Because this construction is fixed and relies on standard XOR behavior, many correct solutions naturally have very similar logic and structure. I did not copy or share code, nor use any public code-sharing platforms. The similarity is unintentional.