3330 solved

3330/3330.cpp

@@ -0,0 +1,59 @@
+#include <string>
+
+namespace {
+    class Solution {
+    public:
+        int possibleStringCount(std::string word) {
+            const size_t word_length = word.length();
+            if (word_length == 1)
+                return 1;
+
+            int result = 1;
+            
+            int group_size = 1;
+            int groups_count = 1;
+            char prev_char = word[0];
+
+            for (size_t i = 1; i < word_length; ++i) {
+                char curr_char = word[i];
+                
+                if (curr_char != prev_char) {
+                    if (group_size > 1) {
+                        result += group_size - 1;
+                    }
+
+                    groups_count += 1;
+                    group_size = 1;
+                } else {
+                    group_size += 1;
+                }
+
+                prev_char = curr_char;
+            }
+
+            if (group_size > 1) {
+                result += group_size - 1;
+            }
+
+
+            return result;
+        }
+    };
+}
+
+#include <gtest/gtest.h>
+
+TEST(P3330, 1) {
+    Solution s;
+    EXPECT_EQ(s.possibleStringCount("abbcccc"), 5);
+}
+
+TEST(P3330, 2) {
+    Solution s;
+    EXPECT_EQ(s.possibleStringCount("abcd"), 1);
+}
+
+TEST(P3330, 3) {
+    Solution s;
+    EXPECT_EQ(s.possibleStringCount("aaaa"), 4);
+}