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E - Red Scarf Time Limit: 2 sec / Memory Limit: 1024 MB Score : 500500 points Problem Statement There are NN Snuke Cats numbered 1,2,…,N1,2,…,N, where 阅读全文
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D - Replacing Time Limit: 2 sec / Memory Limit: 1024 MB Score : 400400 points Problem Statement You have a sequence AA composed of NN positive integer 阅读全文
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C - One Quadrillion and One Dalmatians Time Limit: 2 sec / Memory Limit: 1024 MB Score : 300300 points Problem Statement 10000000000000011000000000000 阅读全文
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B - Mix Juice Time Limit: 2 sec / Memory Limit: 1024 MB Score : 200200 points Problem Statement A shop sells NN kinds of fruits, Fruit 1,…,N1,…,N, at 阅读全文
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A - αlphabet Time Limit: 2 sec / Memory Limit: 1024 MB Score : 100 points Problem Statement An uppercase or lowercase English letter αα will be given 阅读全文