CTF Challenges by Category
All Skills
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algorithms × 23
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arrays × 21
🚩
web × 14
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array × 12
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sorting × 10
⭐
traversal × 8
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iteration × 8
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linux × 7
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php × 6
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navigation × 6
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directories × 5
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simulation × 5
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listing × 4
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greedy × 4
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encryption × 3
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basics × 3
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file-management × 3
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file-commands × 3
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creation × 3
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filtering × 3
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strings × 3
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math × 3
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shell × 2
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file-creation × 2
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file-system × 2
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file-move × 2
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hidden-files × 2
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compression × 2
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grid × 2
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subarrays × 2
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combinatorics × 2
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alternating × 2
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dynamic-programming × 2
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list-manipulation × 2
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sequence × 2
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balance × 2
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substring × 2
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validation × 2
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search × 2
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sum × 2
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order × 2