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Not the day you're after? Here's the solution to yesterday's Connections.
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The U.S. women also beat Canada 2-1 in overtime, the first time the Americans swept both Olympic hockey tournaments. The celebration of the twin victories has been shadowed by U.S. politics almost since the final horn of the men’s game.
this.arr = []; // 存储所有历史价格，通过索引快速获取对应价格
if (n <= 1) return;