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恢复内容开始 One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k f 阅读全文
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Okabe needs to renovate the Future Gadget Laboratory after he tried doing some crazy experiments! The lab is represented as an n by n square grid of i 阅读全文
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Mister B once received a gift: it was a book about aliens, which he started read immediately. This book had c pages. At first day Mister B read v0 pag 阅读全文
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vi还没配置(旧电脑,不想再折腾啦),空格缩进不合格,,请见谅 A(三位数,取第一位和最后一位) B (可以联想成求两个集合的交集) C(求最大公倍数-->两个数相乘除以两个数的最大公约数就是最小公倍数,给n个数求n个数的最小公倍数,只能遍历啦 ) D - Transit Tree Path Tim 阅读全文