[DCC]: #3191 Leetcode.

Typescript-Solutions/src/3191.ts

@@ -0,0 +1,47 @@
+/*
+PROBLEM: 3191: Minimum Operations to Make Binary Array Elements Equal to One I
+
+You are given a binary array nums.
+
+You can do the following operation on the array any number of times (possibly zero):
+
+Choose any 3 consecutive elements from the array and flip all of them.
+Flipping an element means changing its value from 0 to 1, and from 1 to 0.
+
+Return the minimum number of operations required to make all elements in nums equal to 1. If it is impossible, return -1.
+
+Example 1:
+Input: nums = [0,1,1,1,0,0]
+Output: 3
+
+Explanation:
+We can do the following operations:
+Choose the elements at indices 0, 1 and 2. The resulting array is nums = [1,0,0,1,0,0].
+Choose the elements at indices 1, 2 and 3. The resulting array is nums = [1,1,1,0,0,0].
+Choose the elements at indices 3, 4 and 5. The resulting array is nums = [1,1,1,1,1,1].
+
+Example 2:
+Input: nums = [0,1,1,1]
+Output: -1
+
+Explanation:
+It is impossible to make all elements equal to 1.
+*/
+function minOperations(nums: number[]): number {
+	let count: number = 0;
+	let n: number = nums.length;
+
+	for (let i = 0; i < n; i++) {
+		if (nums[i] === 0) {
+			count++;
+
+			if (i + 2 >= n) {
+				return -1;
+			}
+			nums[i] ^= 1;
+			nums[i + 1] ^= 1;
+			nums[i + 2] ^= 1;
+		}
+	}
+	return count;
+}

Typescript-Solutions/tsconfig.tsbuildinfo

@@ -1 +1 @@
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