Added checkGoodPairsInArray.js

12.FizzBuzz/fizzBuzz.js

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+// Given a positive integer A, return an array of strings with all the integers from 1 to N. But for multiples of 3 the array should have “Fizz” instead of the number. For the multiples of 5, the array should have “Buzz” instead of the number. For numbers which are multiple of 3 and 5 both, the array should have "FizzBuzz" instead of the number.
+function fizzBuzz(A){  
+		let out = [];
+		for(let num = 1; num <= A; num++){
+			let remainderBy5 = num % 5;
+			let remainderBy3 = num % 3;
+			if((!remainderBy5) && (!remainderBy3) ){
+				out.push( "FizzBuzz");
+			}else if(!remainderBy3){
+				out.push( "Fizz");
+			}else if(!remainderBy5){
+				out.push( "Buzz");
+			}else{
+				out.push(num);
+			}
+		}    
+		return out;		
+	}
+
+let A = 5;
+console.log(fizzBuzz(A));

checkGoodPairsInArray.js

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+// Given an array A and a integer B. A pair(i,j) in the array is a good pair if i!=j and (A[i]+A[j]==B). Check if any good pair exist or not.
+
+function checkGoodPairsInArray(A, B){
+		let arrASize = A.length;
+		// For every number traverse all numbers right to it
+		for(let i = 0; i <(arrASize - 1); i++){
+			for(let j = (i + 1); j <(arrASize); j++){
+				if((A[i] + A[j]) == B){
+					return 1;
+				}
+			}
+		}
+		return 0;
+	}
+
+let A = [1,2,3,4];
+let B = 7;
+let out = checkGoodPairsInArray(A,B);
+console.log(out);