Please write codes for the question: Michael is taking n courses this semester, numbered from 1 to n. Each of these courses has a final exam. Unfortunately, these exams are all held on the same day. Michael has d days left to study for the exams. On each of these days, he has exactly h hours of free time he can use to study (note that h might be greater than 24 as Michael lives in a different universe with an other time system). Moreover, for the i-th course, Michael is taking, he has a learning rate l[i] indicating the number of marks he gets on the exam per hour of studying for that course. Michael studies for his exams in 1-hour blocks; for example, he can't check for an exam for 40 minutes and then switch to another one. Note that in Michael's universe, final exam grades aren't capped at 100. In fact, there's no upper limit on how high they can go. If Michael takes an exam without studying for it, he'll get a 0 on that exam. To qualify for an excellent scholarship, Michael needs to get at least m marks on each of the n exams. Help him out by telling him whether it's possible to do so if he manages his time wisely. The Input - The first line contains a single integer t denoting the number of test cases. The description of the t test cases follow one by one. - Each test case is described in 2 lines. The first line contains 4 space-separated integers n, d, h, and m, respectively. - The second line contains n space-separated integers, specifying the list l. The Output For each test case, print "Yes" if Michael can qualify for the scholarship and "No" otherwise. Print these ones per line in the same order that the test cases appear in the input. Constraints - 1 <= t <= 5 - 1 <= n <= 1000 - 1 <= d <= 100 - 0 <= h <= 10**12 - 0 <= m <= 10**9 - 1 <= l[i] <= 10**9  Note The test cases for this question are designed such that any reasonable correct solution should get roughly 90%, regardless of how efficient it is. However, to get 100%, your code needs to be fairly efficient as well and finish running on any valid input (under the constraints above) within a few seconds. Sample Input ``` 3 3 3 2 50 25 62 20 5 8 3 60 11 61 9 33 29 2 1 2 50 49 51 ``` ## Sample Output ``` Yes Yes No ``` ## Sample Explanation - The first line of the input contains a single integer 3, indicating that there will be 3 test cases. - In the first test case, there are 3 courses. Michael has 3 days to study for their exams. He has 2 free hours in each of those 3 days. Lastly, he needs to get at least 50 marks in each of the exams to qualify for the scholarship. - The learning rates for the 3 exams are 25, 62, and 20. - One way for Michael to get at least 50 marks in each exam is the following: --- Study for course 3 one hour every day. He gets 20 marks an hour. That sums up to 60 marks, which is greater than 50. --- Study for course 2 one hour on the first day. He gets 62 marks, which is enough. --- Study for course 1 one hour on days 2 and 3. He gets 50 marks, which is just enough.