Solve Problems
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Cloudy Days
ATTEMPTED BY: 372 SUCCESS RATE: 69% LEVEL: Easy
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Station Pairs
ATTEMPTED BY: 155 SUCCESS RATE: 36% LEVEL: Hard
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Reach Quickly
ATTEMPTED BY: 63 SUCCESS RATE: 40% LEVEL: Hard
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Vaccine
ATTEMPTED BY: 137 SUCCESS RATE: 91% LEVEL: Hard
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Flip Grid
ATTEMPTED BY: 89 SUCCESS RATE: 76% LEVEL: Medium
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Two gold mines
ATTEMPTED BY: 446 SUCCESS RATE: 88% LEVEL: Medium
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Tree construction
ATTEMPTED BY: 210 SUCCESS RATE: 79% LEVEL: Medium
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Handshakes in a party
ATTEMPTED BY: 169 SUCCESS RATE: 62% LEVEL: Medium
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The smallest subsequence
ATTEMPTED BY: 280 SUCCESS RATE: 63% LEVEL: Hard
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Meet people
ATTEMPTED BY: 205 SUCCESS RATE: 40% LEVEL: Hard