A - Weak Beats
遍历判断偶数位的字符是否都是 '1' 即可
B - Round-Robin Tournament
统计每个人的胜场次数,再按照胜场次数降序,序号升序排序输出即可
C - World Tour Finals
第 i 个人的得分是 过的题的得分和 + 序号 i 的额外分
先统计出每个人的得分,找到最高分,再将原输入的题目按照分数降序排序
判断每个人时,从最高分的题目向最低分的题目遍历,
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