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题目描述 Snuke is having another barbeque party. This time, he will make one serving of Skewer Meal. He has a stock of N Skewer Meal Packs. The i-th Skewe 阅读全文
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import java.util.*; import java.*; import java.math.*; public class Main { public static BigInteger xx(BigInteger y) { return y.multiply(BigInteger.valueOf(3)); } public sta... 阅读全文
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题目描述 Consider a square map with N × N cells. We indicate the coordinate of a cell by (i, j), where 1 ≤ i, j ≤ N . Each cell has a color either white o 阅读全文
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Description: There is a positive integer X, X's reversion count is Y. For example, X=123, Y=321; X=1234, Y=4321. Z=(X-Y)/9, Judge if Z is made up of o 阅读全文
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Description: The elderly aunts always like to look for bargains and preferential merchandise. Now there is a shop carrying out group purchase promotio 阅读全文