Solve Problems
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Team Up
ATTEMPTED BY: 568 SUCCESS RATE: 31% LEVEL: Medium
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Light Up the Bulbs
ATTEMPTED BY: 1188 SUCCESS RATE: 87% LEVEL: Medium
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Lottery
ATTEMPTED BY: 282 SUCCESS RATE: 88% LEVEL: Hard
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A website
ATTEMPTED BY: 437 SUCCESS RATE: 90% LEVEL: Hard
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A fair competition
ATTEMPTED BY: 1546 SUCCESS RATE: 94% LEVEL: Medium
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Two types of queries
ATTEMPTED BY: 700 SUCCESS RATE: 44% LEVEL: Medium
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Tri-State-Area<May Cir 19>
ATTEMPTED BY: 185 SUCCESS RATE: 43% LEVEL: Hard
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Students and their arrangements <CAST>
ATTEMPTED BY: 688 SUCCESS RATE: 78% LEVEL: Medium
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Group Range
ATTEMPTED BY: 1554 SUCCESS RATE: 30% LEVEL: Medium
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Lexicographically minimal string
ATTEMPTED BY: 1655 SUCCESS RATE: 73% LEVEL: Medium