compile java online

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Compilation time: 0.84 sec, absolute running time: 0.13 sec, cpu time: 0.09 sec, memory peak: 18 Mb, absolute service time: 0.98 sec

Check if key 2 exists: 0 Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true Check if key 2 exists: true 4Check : [d, b, c, a] d--->9 b--->5 c--->7 a--->2