Added FizzBuzz,WaterBottle,SignOf and BrokenCal Solution In Java (codedecks-in#203)

* Added FizzBuzz,WaterBottle,SignOf and BrokenCal Solution * Removed main function and unnecessary code * Updated README.md Co-authored-by: Manish <manishkasera456@gmail.cm>

Author: Manish-kasera

Java/BrokenCalculator.java

@@ -0,0 +1,16 @@
+// https://leetcode.com/problems/broken-calculator/
+
+ public int brokenCalc(int startValue, int target) {
+
+
+ if(startValue >= target){
+ return startValue - target;
+ }
+
+ if(target % 2 == 0){
+ return 1+brokenCalc(startValue,target/2);
+ }
+
+ return 1+brokenCalc(startValue,target+1);
+
+ }

Java/FizzBuzz.java

@@ -0,0 +1,23 @@
+
+import java.util.ArrayList;
+import java.util.List;
+
+// https://leetcode.com/problems/fizz-buzz/
+
+
+ public List<String> fizzBuzz(int n) {
+ List <String> s = new ArrayList<>();
+
+ for (int i = 1; i <= n ; i++) {
+ if( i % 15 == 0){
+ s.add("FizzBuzz");
+ }else if( i % 3 == 0){
+ s.add("Fizz");
+ }else if(i % 5 == 0){
+ s.add("Buzz");
+ }else{
+ s.add(Integer.toString(i));
+ }
+ }
+ return s;
+ }

Java/SignOf.java

@@ -0,0 +1,18 @@
+
+
+// https://leetcode.com/problems/sign-of-the-product-of-an-array/
+
+ public int arraySign(int[] nums) {
+ int count = 0;
+ for(int i : nums){
+ if(i == 0){
+ return 0;
+ }else if(i < 0){
+ count++;
+ }
+ }
+ if(count % 2 == 0){
+ return 1;
+ }
+ return -1;
+ }

Java/WaterBottles.java

@@ -0,0 +1,17 @@
+
+
+// https://leetcode.com/problems/water-bottles/
+
+
+ public int numWaterBottles(int numBottles, int numExchange) {
+
+ int total = numBottles;
+ while(numBottles>=numExchange)
+ {
+ int exchange=numBottles/numExchange;
+ int rem=numBottles%numExchange;
+ total+=exchange;
+ numBottles=exchange+rem;
+ }
+ return total;
+ }

README.md

@@ -314,6 +314,10 @@ Check out ---> [Sample PR](https://github.com/codedecks-in/LeetCode-Solutions/pu
 | 13 | [Roman to Integer](https://leetcode.com/problems/roman-to-integer) | [Java](./Java/roman-to-integer.java) <br> [C++](./C++/Roman_to_Integer.cpp)| _O(n)_ | _O(1)_ | Easy | Math | | 
 | 14 | [Arithmetic Subarrays](https://leetcode.com/problems/arithmetic-subarrays/) | [Java](./Java/Arithmetic-Subarrays.java) | _O(m\*n)_ | _O(n)_ | Medium | Math | Pattern Count |
 | 263 | [Ugly Number](https://leetcode.com/problems/ugly-number/) | [Java](./Java/Ugly-Number.java) | _O(n)_ | _O(n)_ | Easy | Math | |
+| 412 | [Fizz Buzz](https://leetcode.com/problems/fizz-buzz/) | [Java](./Java/FizzBuzz.java) | _O(n)_ | _O(n)_ | Easy | Math | |
+| 1518 | [Water Bottles](https://leetcode.com/problems/water-bottles/) | [Java](./Java/WaterBottles.java) | _O(n)_ | _O(n)_ | Easy | Math | |
+| 1822 | [Sign Of Product](https://leetcode.com/problems/sign-of-the-product-of-an-array/) | [Java](./Java/SignOf.java) | _O(n)_ | _O(n)_ | Easy | Math | |
+| 991 | [Broken Calculator](https://leetcode.com/problems/broken-calculator/) | [Java](./Java/BrokenCalculator.java) | _O(n)_ | _O(n)_ | Medium | Math | |
 
 <br/>
 <div align="right">