[HackerEarth] Micro bought a new ball having an initial color K. He is also having N boxes of color, where i^th box contains color A[i]. He wants to paint his new ball. So he selects some boxes out of - 题解

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题目信息
题号 P20542
标题 [HackerEarth] Micro bought a new ball having an initial color K. He is also having N boxes of color, where i^th box contains color A[i]. He wants to paint his new ball. So he selects some boxes out of
难度 普及-
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