{"problem":{"name":"Distinct or Not","description":{"content":"Given is a sequence of integers $A_1, A_2, ..., A_N$. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc154_c"},"statements":[{"statement_type":"Markdown","content":"Given is a sequence of integers $A_1, A_2, ..., A_N$. If its elements are pairwise distinct, print `YES`; otherwise, print `NO`.\n\n## Constraints\n\n*   $2 ≤ N ≤ 200000$\n*   $1 ≤ A_i ≤ 10^9$\n*   All values in input are integers.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$\n$A_1$ $...$ $A_N$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc154_c","tags":[],"sample_group":[["5\n2 6 1 4 5","YES\n\nThe elements are pairwise distinct."],["6\n4 1 3 1 6 2","NO\n\nThe second and fourth elements are identical."],["2\n10000000 10000000","NO"]],"created_at":"2026-03-03 11:01:13"}}