Solve Problems
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                                        Valid Chess BoardATTEMPTED BY: 1390 SUCCESS RATE: 56% LEVEL: Easy 
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                                        Binary associativityATTEMPTED BY: 3387 SUCCESS RATE: 33% LEVEL: Easy 
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                                        String ClashATTEMPTED BY: 1292 SUCCESS RATE: 88% LEVEL: Easy 
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                                        Addition ErrorsATTEMPTED BY: 2531 SUCCESS RATE: 37% LEVEL: Easy 
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                                        RatioATTEMPTED BY: 1201 SUCCESS RATE: 66% LEVEL: Medium 
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                                        Compress the StringATTEMPTED BY: 1267 SUCCESS RATE: 69% LEVEL: Easy 
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                                        Total costATTEMPTED BY: 6704 SUCCESS RATE: 80% LEVEL: Easy 
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                                        The Upload ServerATTEMPTED BY: 1091 SUCCESS RATE: 20% LEVEL: Easy 
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                                        Challenging TrackATTEMPTED BY: 1443 SUCCESS RATE: 43% LEVEL: Easy 
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                                        City TravelATTEMPTED BY: 10214 SUCCESS RATE: 78% LEVEL: Easy 
 
        