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1203: One Stroke Description There is a complete binary tree which includes n nodes. Each node on the tree has a weight w, each edge on the tree is di 阅读全文
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1202: GCD Description Input The first line is an positive integer T . (1<=T<= 10^3) indicates the number of test cases. In the next T lines, there are 阅读全文
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1201: Friends Description In a country, the relationship between people can be indicated by a tree. If two people are acquainted with each other, ther 阅读全文
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1200: Choosy in Food Description Xiao Ming find n trees (labeled 0...n-1) which join a circle in a magical land. Each treeis covered with ripe berries 阅读全文
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1199: Little Red Riding Hood Description Once upon a time, there was a little girl. Her name was Little Red Riding Hood. One day, her grandma was ill. 阅读全文
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2023. Donald is a postman Time limit: 1.0 secondMemory limit: 64 MB Donald Duck works as a postman for the Walt Disney Studios. He delivers children’s 阅读全文
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2022. Riding a Toad Time limit: 1.0 secondMemory limit: 64 MB A tribe of leafmen live in the old forest. Leafmen are very tiny and fast, that’s why we 阅读全文
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2021. Scarily interesting! Time limit: 1.0 secondMemory limit: 64 MB This year at Monsters University it is decided to arrange Scare Games. At the Gam 阅读全文
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2020. Traffic Jam in Flower Town Time limit: 1.0 secondMemory limit: 64 MB Having returned from Sun City, Dunno told all his friends that every shorty 阅读全文
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2019. Pair: normal and paranormal Time limit: 1.0 secondMemory limit: 64 MB If you find yourself in Nevada at an abandoned nuclear range during Hallow 阅读全文