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

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

|1869|[Longer Contiguous Segments of Ones than Zeros](https://leetcode.com/problems/longer-contiguous-segments-of-ones-than-zeros/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1869.java)||Easy|Array, Two Pointers|

|1863|[Sum of All Subset XOR Totals](https://leetcode.com/problems/sum-of-all-subset-xor-totals/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1863.java)||Easy|Backtracking, Recursion|

|1862|[Sum of Floored Pairs](https://leetcode.com/problems/sum-of-floored-pairs/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1862.java)||Hard|Math|

|1861|[Rotating the Box](https://leetcode.com/problems/rotating-the-box/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1861.java)|[:tv:](https://youtu.be/2LRnTMOiqSI)|Medium|Array, Two Pointers|

packagecom.fishercoder.solutions;

publicclass_1869 {

publicstaticclassSolution1 {

publicbooleancheckZeroOnes(Strings) {

intzeroes =0;

intones =0;

for (inti =0;i <s.length(); ) {

intstart =i;

while (i <s.length() &&s.charAt(i) =='0') {

i++;

}

if (i >start) {

zeroes =Math.max(zeroes,i -start);

}

start =i;

while (i <s.length() &&s.charAt(i) =='1') {

i++;

}

if (i >start) {

ones =Math.max(ones,i -start);

}

}

returnones >zeroes;

}

}

}

packagecom.fishercoder;

importcom.fishercoder.solutions._1869;

importorg.junit.BeforeClass;

importorg.junit.Test;

importstaticorg.junit.Assert.assertEquals;

publicclass_1869Test {

privatestatic_1869.Solution1solution1;

publicstaticvoidsetup() {

solution1 =new_1869.Solution1();

}

publicvoidtest1() {

assertEquals(true,solution1.checkZeroOnes("1101"));

}

publicvoidtest2() {

assertEquals(false,solution1.checkZeroOnes("111000"));

}

}