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【题意】：https://www.cnblogs.com/bluefly hrbust/p/8971769.html 本题题意就是把1到n数表示为,两组数之和相等,即能不能1 n划分成两部分(男女分组是干扰的) 1 2 3 4 5 6 7 8 偶数 1+8+2+7 = 3+6+4+5 1 2 3 4 阅读全文
posted @ 2018-04-29 21:20
Roni_i
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Doki Doki Literature Club! is a visual novel developed by Team Salvato. The protagonist is invited by his childhood friend, Sayori, to join their high 阅读全文
posted @ 2018-04-29 14:58
Roni_i
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King of Karaoke Time Limit: 1 Second Memory Limit: 65536 KB It's Karaoke time! DreamGrid is performing the song Powder Snow in the game King of Karaok 阅读全文
posted @ 2018-04-29 13:59
Roni_i
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A sequence of $n$ integers $a_1, a_2, \dots, a_n$ is called a peak, if and only if there exists exactly one integer $k$ such that $1 a_i$ for all $k u 阅读全文
posted @ 2018-04-29 13:43
Roni_i
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"线上网址" BaoBao has just found a positive integer sequence $a_1, a_2, \dots, a_n$ of length $n$ from his left pocket and another positive integer $b$ fr 阅读全文
posted @ 2018-04-29 13:36
Roni_i
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