Added Reverse word in a string

Your Name · Your Name · commit 7d99fb94afd7 · 2020-10-16T20:35:26.000+05:30
diff --git a/leetcode/cpp/string/151.cpp b/leetcode/cpp/string/151.cpp
@@ -0,0 +1,26 @@
+class Solution {
+public:
+    string reverseWords(string s) {
+        string result;
+        int i = 0;
+        int n = s.length();
+
+        while(i<n){
+            while(i < n && s[i] == ' ')i++;
+            if(i >= n){
+                break;
+            }
+            int j = i+1;
+            while(j < n && s[j] != ' ')j++;
+            string sub = s.substr(i, j-i);
+            if(result.length()==0){
+                result = sub;
+            }
+            else{
+                result = sub + " " + resul;
+            }
+            i = j+1;
+        }
+        return result;
+    }
+};
