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

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

|1876|[Substrings of Size Three with Distinct Characters](https://leetcode.com/problems/substrings-of-size-three-with-distinct-characters/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1876.java)||Easy|String|

|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|

packagecom.fishercoder.solutions;

publicclass_1876 {

publicstaticclassSolution1 {

publicintcountGoodSubstrings(Strings) {

intcount =0;

for (inti =0;i <s.length() -2;i++) {

Stringcandidate =s.substring(i,i +3);

if (candidate.charAt(0) !=candidate.charAt(1) &&candidate.charAt(0) !=candidate.charAt(2) &&candidate.charAt(1) !=candidate.charAt(2)) {

count++;

}

}

returncount;

}

}

}