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authorcrupest <crupest@outlook.com>2021-02-23 21:07:19 +0800
committercrupest <crupest@outlook.com>2021-02-23 21:07:19 +0800
commitd8f3b40085619cb680c8f227c65a1f5acc393223 (patch)
tree6a38e3a6c79276fc396259ef962d17236dbed569 /leetcode/cpp/7.cpp
parentb0162802ad9723c678e495f29ca2f0fc0af2eff1 (diff)
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Move leetcode solutions to subdir.
Diffstat (limited to 'leetcode/cpp/7.cpp')
-rw-r--r--leetcode/cpp/7.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/leetcode/cpp/7.cpp b/leetcode/cpp/7.cpp
new file mode 100644
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--- /dev/null
+++ b/leetcode/cpp/7.cpp
@@ -0,0 +1,18 @@
+class Solution
+{
+public:
+ int reverse(int x)
+ {
+ int result = 0;
+ while (x != 0)
+ {
+ int digit = x % 10;
+ x /= 10;
+ if (__builtin_smul_overflow(result, 10, &result))
+ return 0;
+ if (__builtin_sadd_overflow(result, digit, &result))
+ return 0;
+ }
+ return result;
+ }
+};