add ts solution for problem 442

Author: hypergadam

solution/0400-0499/0442.Find All Duplicates in an Array/Solution.ts

@@ -0,0 +1,16 @@
+function findDuplicates(nums: number[]): number[] {
+  for (let i = 0; i < nums.length; i++) {
+    while (nums[i] !== nums[nums[i] - 1]) {
+      const temp = nums[i];
+      nums[i] = nums[temp - 1];
+      nums[temp - 1] = temp;
+    }
+  }
+  const ans: number[] = [];
+  for (let i = 0; i < nums.length; i++) {
+    if (nums[i] !== i + 1) {
+      ans.push(nums[i]);
+    }
+  }
+  return ans;
+}

solution/2200-2299/2283.Check if Number Has Equal Digit Count and Digit Value/Solution.go

@@ -9,4 +9,4 @@ func digitCount(num string) bool {
 		}
 	}
 	return true
-}
+}