1 files changed, 0 insertions, 56 deletions
diff --git a/works/solutions/leetcode/cpp/639.cpp b/works/solutions/leetcode/cpp/639.cpp
deleted file mode 100644
index ead252e..0000000
--- a/works/solutions/leetcode/cpp/639.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-#include <string>
-
-using std::string;
-
-const long long M = 1e9 + 7;
-
-class Solution {
-public:
-  long long f[100010]{0};
-
-  int numDecodings(string s) {
-    f[0] = 1;
-    if (s.front() == '*') {
-      f[1] = 9;
-    } else if (s.front() == '0') {
-      f[1] = 0;
-    } else {
-      f[1] = 1;
-    }
-
-    for (int i = 2; i <= s.size(); i++) {
-      char c = s[i - 1], l = s[i - 2];
-      if (c == '*') {
-        f[i] += f[i - 1] * 9;
-        if (l == '*') {
-          f[i] += f[i - 2] * 15;
-        } else if (l == '1') {
-          f[i] += f[i - 2] * 9;
-        } else if (l == '2') {
-          f[i] += f[i - 2] * 6;
-        }
-        f[i] %= M;
-      } else if (c == '0') {
-        if (l == '1' || l == '2')
-          f[i] += f[i - 2];
-        else if (l == '*')
-          f[i] += f[i - 2] * 2;
-        f[i] %= M;
-      } else {
-        f[i] += f[i - 1];
-        if (l == '*') {
-          if (c <= '6')
-            f[i] += f[i - 2] * 2;
-          else
-            f[i] += f[i - 2];
-        } else if (l == '1')
-          f[i] += f[i - 2];
-        else if (l == '2' && c <= '6')
-          f[i] += f[i - 2];
-        f[i] %= M;
-      }
-    }
-
-    return f[s.size()] % M;
-  }
-};