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WA的来看只要考虑下面几组情况: 1.等号两边的都不可能是假 2.不等号两边的币之外的所有币都是真的 3.在同一种不等号两边都出现过的都是真的 4.测试数据中没有不符合逻辑的 只要按上面三条原则那写,必定AC Followed by:
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