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-rw-r--r--count_sorted_vowel.cpp20
1 files changed, 20 insertions, 0 deletions
diff --git a/count_sorted_vowel.cpp b/count_sorted_vowel.cpp
new file mode 100644
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--- /dev/null
+++ b/count_sorted_vowel.cpp
@@ -0,0 +1,20 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ int countVowelStrings(int n) {
+ int a = 1, e = 1, i = 1, o = 1, u = 1;
+ while (--n) {
+ o += u;
+ i += o;
+ e += i;
+ a += e;
+ }
+ return a + e + i + o + u;
+ }
+};
+
+int main() {
+ Solution obj;
+ cout << obj.countVowelStrings(1);
+}