https://codeforces.com/contest/1706/problem/D1시간 4초, 메모리 64MBinput :t (1 ≤ t ≤ 100)n k (1 ≤ n, k ≤ 3000)a1 a2 ... ai (1 ≤ a1 ≤ a2 ≤ an ≤ 109)outp
https://codeforces.com/contest/1706/problem/C시간 1초, 메모리 256MBinput :t (1 ≤ t ≤ 104)n (3 ≤ n ≤ 105)h1 h2 ... hn (1 ≤ hi ≤ 109)output : print a sin