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You can find here a collection of coding challenges from CodeSignal.

Content:

• Arcade

  • Intro

• Challenges

  • Easy
  • Medium
  • Hard

<u>Arcade</u>

Intro

| # | Challenge | Difficulty | Solution | | ---- | :----------------------------------------------------------- | :--------- | ------------------------------------------------------------ | | 1 | [<a href="https://app.codesignal.com/arcade/intro/level-1/jwr339Kq6e3LQTsfa">add</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/add.java">Solution</a>] | | 2 | [<a href="https://app.codesignal.com/arcade/intro/level-1/egbueTZRRL5Mm4TXN">centuryFromYear</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/centuryFromYear.java">Solution</a>] | | 3 | [<a href="https://app.codesignal.com/arcade/intro/level-1/s5PbmwxfECC52PWyQ">checkPalindrome</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/checkPalindrome.java">Solution</a>] | | 4 | [<a href="https://app.codesignal.com/arcade/intro/level-2/xzKiBHjhoinnpdh6m">adjacentElementsProduct</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/adjacentElementsProduct.java">Solution</a>] | | 5 | [<a href="https://app.codesignal.com/arcade/intro/level-2/yuGuHvcCaFCKk56rJ">shapeArea</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/shapeArea.java">Solution</a>] | | 6 | [<a href="https://app.codesignal.com/arcade/intro/level-2/bq2XnSr5kbHqpHGJC">makeArrayConsecutive2</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/makeArrayConsecutive2.java">Solution</a>] | | 7 | [<a href="https://app.codesignal.com/arcade/intro/level-2/2mxbGwLzvkTCKAJMG">almostIncreasingSequence</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/almostIncreasingSequence">Solution</a>] | | 8 | [<a href="https://app.codesignal.com/arcade/intro/level-2/xskq4ZxLyqQMCLshr">matrixElementsSum</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/matrixElementsSum.java">Solution</a>] | | 9 | [<a href="https://app.codesignal.com/arcade/intro/level-3/fzsCQGYbxaEcTr2bL">allLongestStrings</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/allLongestStrings.java">Solution</a>] | | 10 | [<a href="https://app.codesignal.com/arcade/intro/level-3/JKKuHJknZNj4YGL32">commonCharacterCount</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/commonCharacterCount.java">Solution</a>] | | 11 | [<a href="https://app.codesignal.com/arcade/intro/level-3/3AdBC97QNuhF6RwsQ">isLucky</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/isLucky.java">Solution</a>] | | 12 | [<a href="https://app.codesignal.com/arcade/intro/level-3/D6qmdBL2NYz49XHwM">sortByHeight</a>]| Easy | [<a href="https://github.com/Pogryziony/CodeSignal/blob/master/Arcade/sortByHeight.java">Solution</a>] | | 13 | [<a href="">soon</a>]| Medium | [Solution] |

<u>Challenges</u>

Easy

| # | Challenge | Difficulty | Solution | | ---- | :----------------------------------------------------------- | :--------- | ------------------------------------------------------------ | | 1 | [<a href="https://app.codesignal.com/challenge/h7i7qTRoon4KSekYk">arraySumAdjacentDifference</a>]| Easy | [Solution] |

Medium

| # | Challenge | Difficulty | Solution | | ---- | :----------------------------------------------------------- | :--------- | ------------------------------------------------------------ | | 1 | [<a href=""></a>]| Medium | [Solution] |

Hard

| # | Challenge | Difficulty | Solution | | ---- | :----------------------------------------------------------- | :--------- | ------------------------------------------------------------ | | 1 | [<a href=""></a>]| Hard | [Solution] |