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authorkaiwu <kaiwu2004@gmail.com>2022-12-06 12:27:42 +0800
committerkaiwu <kaiwu2004@gmail.com>2022-12-06 12:27:42 +0800
commit2811b1bed5cde2d9260d5964e54dc8d3d2b87d49 (patch)
tree14c24f0efbcd50d9ab5b7bcf01acdb5c7d3c8746 /src/common.cpp
parentb369fbbe155a79fba2437f822f9507c53a8c35e4 (diff)
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2019 day10 part1
Diffstat (limited to 'src/common.cpp')
-rw-r--r--src/common.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/common.cpp b/src/common.cpp
index 1e7984d..956456f 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -51,3 +51,10 @@ bool is_repeated(const char* p1, const char* p2) {
}
return true;
}
+
+int gcd(int a, int b)
+{
+ if (a == 0)
+ return b;
+ return gcd(b % a, a);
+}