https://www.acmicpc.net/problem/26350
26350번: Good Coin Denomination
Different countries use different coin denominations. For example, the USA uses 1, 5, 10, and 25. A desirable property of coin denominations is to have each coin at least twice the amount of its previous coin in sorted order. For example, the USA denominat
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def sol(coins):
flag = False
for i in range(1,len(coins)):
if 2*coins[i-1]>coins[i]:
flag = True
break
print("Denominations:", *coins)
if flag:
print("Bad coin denominations!")
else:
print("Good coin denominations!")
if __name__ == '__main__':
n = int(input())
for _ in range(n):
nums = list(map(int, input().split()))[1:]
sol(nums)
if _!=n-1:
print()
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