Stoned Game (Codeforces 1396B)
Tags: Greedy, games

T is playing a game with his friend, HL.There are $$$n$$$ piles of stones, the $$$i$$$-th pile initially has $$$a_i$$$ stones. T and HL will take alternating turns, with T going first. In each turn, a player chooses a non-empty pile and then removes a single stone from it. However, one cannot choose a pile that has been chosen in the previous turn (the pile that was chosen by the other player, or if the current turn is the first turn then the player can choose any non-empty pile). The player who cannot choose a pile in his turn loses, and the game ends.Assuming both players play optimally, given the starting configuration of $$$t$$$ games, determine the winner of each game.

Input: The first line of the input contains a single integer $$$t$$$ $$$(1 \le t \le 100)$$$ — the number of games. The description of the games follows. Each description contains two lines:The first line contains a single integer $$$n$$$ $$$(1 \le n \le 100)$$$ — the number of piles.The second line contains $$$n$$$ integers $$$a_1, a_2, \dots, a_n$$$ $$$(1 \le a_i \le 100)$$$.

Output: For each game, print on a single line the name of the winner, "T" or "HL" (without quotes)

Note: In the first game, T removes a single stone from the only pile in his first turn. After that, although the pile still contains $$$1$$$ stone, HL cannot choose from this pile because it has been chosen by T in the previous turn. Therefore, T is the winner.

Sample Inputs:
2
1
2
2
1 1

Sample Outputs:
T
HL

Solution (Python):
def solve():
    n = int(input())
    a = list(map(int, input().split()))
    sum_val = 0
    maxx = -1
    for i in range(1, n + 1):
        sum_val += a[i - 1]
        maxx = max(maxx, a[i - 1])
    for i in range(1, n + 1):
        if a[i - 1] > sum_val - a[i - 1]:
            print('T')
            return
    if (sum_val - maxx * 2) % 2 == 1:
        print('T')
        return
    print('HL')

def main():
    t = int(input())
    while t > 0:
        solve()
        t -= 1
if __name__ == '__main__':
    main()

Solution (Python):
for _ in range(int(input())):
    n = int(input())
    a = list(map(int, input().split()))
    mx = max(a)
    sm = sum(a)
    if mx << 1 > sm:
        print('T')
    else:
        print('T' if sm & 1 else 'HL')

Solution (Python):
def main():
    for _ in range(int(input())):
        n = int(input())
        a = list(map(int, input().split()))
        print('T' if max(a) > sum(a) - max(a) or sum(a) % 2 == 1 else 'HL')
main()