Create 0209-minimum-size-subarray-sum.kt

Author: a93a

kotlin/0209-minimum-size-subarray-sum.kt

@@ -0,0 +1,18 @@
+class Solution {
+    fun minSubArrayLen(target: Int, nums: IntArray): Int {
+        var windowSum = 0
+        var left = 0
+        var right = 0
+        var res = Integer.MAX_VALUE
+        
+        while (right < nums.size) {
+            windowSum += nums[right++]
+            while (left < nums.size && windowSum >= target) {
+                res = minOf(res, right - left)
+                windowSum -= nums[left++]
+            }
+        }
+
+        return if (res == Integer.MAX_VALUE) 0 else res
+    }
+}