| # | Title | Solutions | Video | Difficulty | Tag

|-----|----------------|---------------|--------|-------------|-------------

|1812|[Determine Color of a Chessboard Square](https://leetcode.com/problems/determine-color-of-a-chessboard-square/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1812.java)||Easy|String|

|1807|[Evaluate the Bracket Pairs of a String](https://leetcode.com/problems/evaluate-the-bracket-pairs-of-a-string/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1807.java)||Medium|HashTable, String|

|1806|[Minimum Number of Operations to Reinitialize a Permutation](https://leetcode.com/problems/minimum-number-of-operations-to-reinitialize-a-permutation/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1806.java)||Medium|Array, Greedy|

|1805|[Number of Different Integers in a String](https://leetcode.com/problems/number-of-different-integers-in-a-string/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1805.java)||Medium|String|

packagecom.fishercoder.solutions;

publicclass_1812 {

publicstaticclassSolution1 {

publicbooleansquareIsWhite(Stringcoordinates) {

charx =coordinates.charAt(0);

inty =Integer.parseInt(coordinates.charAt(1) +"");

switch (x) {

case'a':

case'c':

case'e':

case'g':

returny %2 ==0;

default:

returny %2 !=0;

}

}

}

}