不過我是不會做。
我隻會做:找出最小的數n滿足:從任一組n個正整數中總能選出2個數,它們的和能被2整除。答案是3。
不過我是不會做。
我隻會做:找出最小的數n滿足:從任一組n個正整數中總能選出2個數,它們的和能被2整除。答案是3。
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