{"problem":{"name":"Popular Vote","description":{"content":"We have held a popularity poll for $N$ items on sale. Item $i$ received $A_i$ votes. From these $N$ items, we will select $M$ as popular items. However, we cannot select an item with less than $\\dfrac","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc161_b"},"statements":[{"statement_type":"Markdown","content":"We have held a popularity poll for $N$ items on sale. Item $i$ received $A_i$ votes.\nFrom these $N$ items, we will select $M$ as popular items. However, we cannot select an item with less than $\\dfrac{1}{4M}$ of the total number of votes.\nIf $M$ popular items can be selected, print `Yes`; otherwise, print `No`.\n\n## Constraints\n\n*   $1 \\leq M \\leq N \\leq 100$\n*   $1 \\leq A_i \\leq 1000$\n*   $A_i$ are distinct.\n*   All values in input are integers.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$ $M$\n$A_1$ $...$ $A_N$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc161_b","tags":[],"sample_group":[["4 1\n5 4 2 1","Yes\n\nThere were $12$ votes in total. The most popular item received $5$ votes, and we can select it."],["3 2\n380 19 1","No\n\nThere were $400$ votes in total. The second and third most popular items received less than $\\dfrac{1}{4\\times 2}$ of the total number of votes, so we cannot select them. Thus, we cannot select two popular items."],["12 3\n4 56 78 901 2 345 67 890 123 45 6 789","Yes"]],"created_at":"2026-03-03 11:01:14"}}