Word break problem: Difference between revisions

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Inline

@@ Line 94: / Line 94: @@
 std::string join(iterator begin, iterator end, separator sep) {
     std::string result;
-    result += *begin++;
+    if (begin != end) {
-    for (; begin != end; ++begin) {
+        result += *begin++;
-        result += sep;
+        for (; begin != end; ++begin) {
-        result += *begin;
+            result += sep;
+            result += *begin;
+        }
     }
     return result;