feat: add typescript solution to lc problem: No.1904

No.1904.The Number of Full Rounds You Have Played

Author: zhaocchen

solution/1900-1999/1904.The Number of Full Rounds You Have Played/README.md

@@ -105,29 +105,21 @@ class Solution {
 }
 ```
 
-### **JavaScript**
-
-```js
-/**
- * @param {string} startTime
- * @param {string} finishTime
- * @return {number}
- */
-var numberOfRounds = function (startTime, finishTime) {
-    let m1 = toMinutes(startTime),
-        m2 = toMinutes(finishTime);
+### **TypeScript**
 
+```ts
+function numberOfRounds(startTime: string, finishTime: string): number {
+    let m1 = toMinutes(startTime), m2 = toMinutes(finishTime);
     if (m1 > m2) {
         m2 += 24 * 60;
     }
-
     let ans = Math.floor(m2 / 15) - Math.ceil(m1 / 15);
-    return ans < 0 ? 0 : ans;
+    return ans > 0 ? ans : 0;
 };
 
-function toMinutes(time) {
-    let [h, m] = time.split(":");
-    return Number(h) * 60 + Number(m);
+function toMinutes(time: string): number {
+    let [h, m] = time.split(":").map(Number);
+    return h * 60 + m;
 }
 ```
 

solution/1900-1999/1904.The Number of Full Rounds You Have Played/README_EN.md

@@ -93,29 +93,21 @@ class Solution {
 }
 ```
 
-### **JavaScript**
-
-```js
-/**
- * @param {string} startTime
- * @param {string} finishTime
- * @return {number}
- */
-var numberOfRounds = function (startTime, finishTime) {
-    let m1 = toMinutes(startTime),
-        m2 = toMinutes(finishTime);
+### **TypeScript**
 
+```ts
+function numberOfRounds(startTime: string, finishTime: string): number {
+    let m1 = toMinutes(startTime), m2 = toMinutes(finishTime);
     if (m1 > m2) {
         m2 += 24 * 60;
     }
-
     let ans = Math.floor(m2 / 15) - Math.ceil(m1 / 15);
-    return ans < 0 ? 0 : ans;
+    return ans > 0 ? ans : 0;
 };
 
-function toMinutes(time) {
-    let [h, m] = time.split(":");
-    return Number(h) * 60 + Number(m);
+function toMinutes(time: string): number {
+    let [h, m] = time.split(":").map(Number);
+    return h * 60 + m;
 }
 ```
 

solution/1900-1999/1904.The Number of Full Rounds You Have Played/Solution.js

@@ -0,0 +1,13 @@
+function numberOfRounds(startTime: string, finishTime: string): number {
+    let m1 = toMinutes(startTime), m2 = toMinutes(finishTime);
+    if (m1 > m2) {
+        m2 += 24 * 60;
+    }
+    let ans = Math.floor(m2 / 15) - Math.ceil(m1 / 15);
+    return ans > 0 ? ans : 0;
+};
+
+function toMinutes(time: string): number {
+    let [h, m] = time.split(":").map(Number);
+    return h * 60 + m;
+}