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5238번: Stacked Floating Mountains ↗

Solutions

Python 3
487 B | 487 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print

def solve():
  n, *l = mii()

  for i in range(2, n):
    if l[i] != l[i - 1] + l[i - 2]:
      return "NO"
  return "YES"

if __name__ == "__main__":
  tc = ii()

  for t in range(1, tc+1):
    ret = solve()

    p(ret)