feat: add solutions to lc problem: No.1450

No.1450.Number of Students Doing Homework at a Given Time

Author: YangFong

solution/1400-1499/1450.Number of Students Doing Homework at a Given Time/README.md

@@ -217,6 +217,55 @@ func busyStudent(startTime []int, endTime []int, queryTime int) int {
 }
 ```
 
+### **C**
+
+```c
+int busyStudent(int* startTime, int startTimeSize, int* endTime, int endTimeSize, int queryTime) {
+    int res = 0;
+    for (int i = 0; i < startTimeSize; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}
+```
+
+### **TypeScript**
+
+```ts
+function busyStudent(
+    startTime: number[],
+    endTime: number[],
+    queryTime: number,
+): number {
+    const n = startTime.length;
+    let res = 0;
+    for (let i = 0; i < n; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}
+```
+
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn busy_student(start_time: Vec<i32>, end_time: Vec<i32>, query_time: i32) -> i32 {
+        let mut res = 0;
+        for i in 0..start_time.len() {
+            if start_time[i] <= query_time && end_time[i] >= query_time {
+                res += 1;
+            }
+        }
+        res
+    }
+}
+```
+
 ### **...**
 
 ```

solution/1400-1499/1450.Number of Students Doing Homework at a Given Time/README_EN.md

@@ -161,6 +161,55 @@ func busyStudent(startTime []int, endTime []int, queryTime int) int {
 }
 ```
 
+### **C**
+
+```c
+int busyStudent(int* startTime, int startTimeSize, int* endTime, int endTimeSize, int queryTime) {
+    int res = 0;
+    for (int i = 0; i < startTimeSize; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}
+```
+
+### **TypeScript**
+
+```ts
+function busyStudent(
+    startTime: number[],
+    endTime: number[],
+    queryTime: number,
+): number {
+    const n = startTime.length;
+    let res = 0;
+    for (let i = 0; i < n; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}
+```
+
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn busy_student(start_time: Vec<i32>, end_time: Vec<i32>, query_time: i32) -> i32 {
+        let mut res = 0;
+        for i in 0..start_time.len() {
+            if start_time[i] <= query_time && end_time[i] >= query_time {
+                res += 1;
+            }
+        }
+        res
+    }
+}
+```
+
 ### **...**
 
 ```

solution/1400-1499/1450.Number of Students Doing Homework at a Given Time/Solution.c

@@ -0,0 +1,9 @@
+int busyStudent(int* startTime, int startTimeSize, int* endTime, int endTimeSize, int queryTime) {
+    int res = 0;
+    for (int i = 0; i < startTimeSize; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}

solution/1400-1499/1450.Number of Students Doing Homework at a Given Time/Solution.rs

@@ -0,0 +1,11 @@
+impl Solution {
+    pub fn busy_student(start_time: Vec<i32>, end_time: Vec<i32>, query_time: i32) -> i32 {
+        let mut res = 0;
+        for i in 0..start_time.len() {
+            if start_time[i] <= query_time && end_time[i] >= query_time {
+                res += 1;
+            }
+        }
+        res
+    }
+}

solution/1400-1499/1450.Number of Students Doing Homework at a Given Time/Solution.ts

@@ -0,0 +1,14 @@
+function busyStudent(
+    startTime: number[],
+    endTime: number[],
+    queryTime: number,
+): number {
+    const n = startTime.length;
+    let res = 0;
+    for (let i = 0; i < n; i++) {
+        if (startTime[i] <= queryTime && endTime[i] >= queryTime) {
+            res++;
+        }
+    }
+    return res;
+}