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CXOJ

小明睡觉时长计算 统计

满分提交

得分分布

Created with Raphaël 2.1.2010020030040010066330
score: 100

前缀和

Created with Raphaël 2.1.201753505257001009080706050403020100
score: ≤100

后缀和

Created with Raphaël 2.1.201753505257001009080706050403020100
score: ≥100