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

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

|1556|[Thousand Separator](https://leetcode.com/problems/thousand-separator/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1556.java)||Easy|String|

|1551|[Minimum Operations to Make Array Equal](https://leetcode.com/problems/minimum-operations-to-make-array-equal/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1551.java)|[:tv:](https://youtu.be/A-i2sxmBqAA)|Medium|Math|

|1550|[Three Consecutive Odds](https://leetcode.com/problems/three-consecutive-odds/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1550.java)||Easy|Array|

|1545|[Find Kth Bit in Nth Binary String](https://leetcode.com/problems/find-kth-bit-in-nth-binary-string/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1545.java)||Medium|String|

packagecom.fishercoder.solutions;

publicclass_1556 {

publicstaticclassSolution1 {

publicStringthousandSeparator(intn) {

Stringstr =Integer.toString(n);

StringBuildersb =newStringBuilder();

for (inti =str.length() -1,j =1;i >=0;i--,j++) {

sb.append(str.charAt(i));

j++;

if (j %3 ==0) {

sb.append(".");

}

}

Stringresult =sb.reverse().toString();

if (result.charAt(0) =='.') {

result =result.substring(1);

}

returnresult;

}

}

}

packagecom.fishercoder;

importcom.fishercoder.solutions._1556;

importorg.junit.BeforeClass;

importorg.junit.Test;

importstaticjunit.framework.TestCase.assertEquals;

publicclass_1556Test {

privatestatic_1556.Solution1solution1;

publicstaticvoidsetup() {

solution1 =new_1556.Solution1();

}

publicvoidtest1() {

assertEquals("987",solution1.thousandSeparator(987));

}

}