aboutsummaryrefslogtreecommitdiff
path: root/letter_combo_number.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'letter_combo_number.cpp')
-rw-r--r--letter_combo_number.cpp32
1 files changed, 0 insertions, 32 deletions
diff --git a/letter_combo_number.cpp b/letter_combo_number.cpp
deleted file mode 100644
index c15a628..0000000
--- a/letter_combo_number.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "leetcode.h"
-
-class Solution {
-public:
- vector<string> letterCombinations(string digits) {
- if (digits.empty())
- return {};
- vector<string> ans;
- ans.push_back("");
- for (auto digit : digits) {
- vector<string> tmp;
- for (auto candidate : nums[digit - '0'])
- for (auto s : ans)
- tmp.push_back(s + candidate);
- ans.swap(tmp);
- }
- for (int i = 0; i < digits.size(); i++)
- cout << ans[i];
- return ans;
- }
-
-private:
- const vector<string> nums = {"", "", "abc", "def", "ghi",
- "jkl", "mno", "pqrs", "tuv", "wxyz"};
-};
-
-int main() {
- string digits = "23";
- cout << digits << endl;
- Solution obj;
- obj.letterCombinations(digits);
-}