Solve Problems
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Team Up
ATTEMPTED BY: 305 SUCCESS RATE: 25% LEVEL: Medium
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Light Up the Bulbs
ATTEMPTED BY: 904 SUCCESS RATE: 88% LEVEL: Medium
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Lottery
ATTEMPTED BY: 251 SUCCESS RATE: 87% LEVEL: Hard
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A website
ATTEMPTED BY: 395 SUCCESS RATE: 90% LEVEL: Hard
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A fair competition
ATTEMPTED BY: 1486 SUCCESS RATE: 94% LEVEL: Medium
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Two types of queries
ATTEMPTED BY: 591 SUCCESS RATE: 40% LEVEL: Medium
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Tri-State-Area<May Cir 19>
ATTEMPTED BY: 167 SUCCESS RATE: 39% LEVEL: Hard
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Students and their arrangements <CAST>
ATTEMPTED BY: 647 SUCCESS RATE: 76% LEVEL: Medium
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Group Range
ATTEMPTED BY: 1512 SUCCESS RATE: 29% LEVEL: Medium
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Lexicographically minimal string
ATTEMPTED BY: 1526 SUCCESS RATE: 72% LEVEL: Medium
