Merge pull request #1271 from 0xff-dev/1016

Add solution and test-cases for problem 1016

Author: 6boris

leetcode/1001-1100/1016.Binary-String-With-Substrings-Representing-1-To-N/README.md

@@ -1,28 +1,23 @@
 # [1016.Binary String With Substrings Representing 1 To N][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
+Given a binary string `s` and a positive integer `n`, return `true` if the binary representation of all the integers in the range `[1, n]` are **substrings** of `s`, or `false` otherwise.
+
+A **substring** is a contiguous sequence of characters within a string.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: s = "0110", n = 3
+Output: true
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Binary String With Substrings Representing 1 To N
-```go
 ```
-
+Input: s = "0110", n = 4
+Output: false
+```
 
 ## 结语
 

leetcode/1001-1100/1016.Binary-String-With-Substrings-Representing-1-To-N/Solution.go

@@ -1,5 +1,41 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func pow(x int) int {
+	base := 1
+
+	for i := 1; i <= x; i++ {
+		base *= 2
+	}
+	return base
+}
+
+func Solution(s string, n int) bool {
+	count := make(map[int]struct{})
+	ls := len(s)
+
+	loop := min(31, ls)
+	for i := 1; i <= loop; i++ {
+		base := 0
+		for j := 0; j < i; j++ {
+			base = base*2 + int(s[j]-'0')
+		}
+		if base != 0 && base <= n {
+			count[base] = struct{}{}
+		}
+		b2 := pow(i - 1)
+		start, end := 0, i
+		for ; end < ls; start, end = start+1, end+1 {
+			if s[start] == '1' {
+				base -= b2
+			}
+			now := base << 1
+			now += int(s[end] - '0')
+			base = now
+			if now == 0 || now > n {
+				continue
+			}
+			count[now] = struct{}{}
+		}
+	}
+	return len(count) == n
 }

leetcode/1001-1100/1016.Binary-String-With-Substrings-Representing-1-To-N/Solution_test.go

@@ -10,30 +10,30 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
+		inputs string
+		n      int
 		expect bool
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", "0110", 3, true},
+		{"TestCase2", "0110", 4, false},
 	}
 
 	//	开始测试
 	for i, c := range cases {
 		t.Run(c.name+" "+strconv.Itoa(i), func(t *testing.T) {
-			got := Solution(c.inputs)
+			got := Solution(c.inputs, c.n)
 			if !reflect.DeepEqual(got, c.expect) {
-				t.Fatalf("expected: %v, but got: %v, with inputs: %v",
-					c.expect, got, c.inputs)
+				t.Fatalf("expected: %v, but got: %v, with inputs: %v %v",
+					c.expect, got, c.inputs, c.n)
 			}
 		})
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }