Merge pull request #784 from 0xff-dev/945

Add solution and test-cases for problem 945

leetcode/901-1000/0945.Minimum-Increment-to-Make-Array-Unique/README.md

@@ -1,28 +1,28 @@
 # [945.Minimum Increment to Make Array Unique][title]
 
-> [!WARNING|style:flat]
-> This question is temporarily unanswered if you have good ideas. Welcome to [Create Pull Request PR](https://github.com/kylesliu/awesome-golang-algorithm)
-
 ## Description
+You are given an integer array `nums`. In one move, you can pick an index `i` where `0 <= i < nums.length` and increment `nums[i]` by `1`.
+
+Return the minimum number of moves to make every value in `nums` **unique**.
+
+The test cases are generated so that the answer fits in a 32-bit integer.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: nums = [1,2,2]
+Output: 1
+Explanation: After 1 move, the array could be [1, 2, 3].
 ```
 
-## 题意
-> ...
+**Example 2:**
 
-## 题解
-
-### 思路1
-> ...
-Minimum Increment to Make Array Unique
-```go
 ```
-
+Input: nums = [3,2,1,2,1,7]
+Output: 6
+Explanation: After 6 moves, the array could be [3, 4, 1, 2, 5, 7].
+It can be shown with 5 or less moves that it is impossible for the array to have all unique values.
+```
 
 ## 结语
 

leetcode/901-1000/0945.Minimum-Increment-to-Make-Array-Unique/Solution.go

@@ -1,5 +1,31 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(nums []int) int {
+	count := make(map[int]int)
+	mn := -1
+	for _, n := range nums {
+		count[n]++
+		if mn == -1 || mn > n {
+			mn = n
+		}
+	}
+	need := len(nums)
+	steps := 0
+	cur := mn
+	for need > 0 {
+		if count[cur] == 1 || count[cur] == 0 {
+			if count[cur] != 0 {
+				need--
+			}
+			cur++
+			continue
+		}
+		next := cur + 1
+		step := count[cur] - 1
+		steps += step
+		count[next] += step
+		cur = next
+		need--
+	}
+	return steps
 }

leetcode/901-1000/0945.Minimum-Increment-to-Make-Array-Unique/Solution_test.go

@@ -10,12 +10,12 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
-		expect bool
+		inputs []int
+		expect int
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", []int{1, 2, 2}, 1},
+		{"TestCase2", []int{3, 2, 1, 2, 1, 7}, 6},
+		{"TestCase3", []int{1, 2, 3, 3, 3, 3, 2, 4, 4, 4, 45, 5}, 32},
 	}
 
 	//	开始测试
@@ -30,10 +30,10 @@ func TestSolution(t *testing.T) {
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }