Update shifting-letters.cpp

buyforgirl · Jun 10, 2018 · f0fab42 · f0fab42
1 parent a5e1484
commit f0fab42
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/C++/shifting-letters.cpp b/C++/shifting-letters.cpp
@@ -8,10 +8,7 @@ class Solution {
         auto times = accumulate(shifts.cbegin(), shifts.cend(), 0L) % 26;
         for (int i = 0; i < S.length(); ++i) {
             result.push_back('a' + (S[i] - 'a' + times) % 26);
-            times = (times - shifts[i]) % 26;
-            if (times < 0) {
-                times += 26;
-            }
+            times = ((times - shifts[i]) % 26 + 26) % 26;
         }
         return result;
     }