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authorYuqian Yang <crupest@crupest.life>2025-02-12 15:55:21 +0800
committerYuqian Yang <crupest@crupest.life>2025-02-12 16:04:50 +0800
commit93ea69f427e3d8165d34bd6ca7b533666884f307 (patch)
tree22fcaec20fcdad22afd01c4214ca5301e304e15f /works/solutions/leetcode/cpp/17.04.cpp
parent1ecfd0ab7f1f511268fd6404dbc110c3c277b48c (diff)
parenteb8beb49117289ba9181cbefe647c4aa44e6a0b1 (diff)
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import(solutions): IMPORT crupest/solutions COMPLETE.
Diffstat (limited to 'works/solutions/leetcode/cpp/17.04.cpp')
-rw-r--r--works/solutions/leetcode/cpp/17.04.cpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/works/solutions/leetcode/cpp/17.04.cpp b/works/solutions/leetcode/cpp/17.04.cpp
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--- /dev/null
+++ b/works/solutions/leetcode/cpp/17.04.cpp
@@ -0,0 +1,21 @@
+#include <vector>
+
+using std::vector;
+
+class Solution
+{
+public:
+ int missingNumber(vector<int> &nums)
+ {
+ const int size = nums.size();
+ const int sum = size * (size + 1) / 2;
+
+ int real_sum = 0;
+ for (auto i : nums)
+ {
+ real_sum += i;
+ }
+
+ return sum - real_sum;
+ }
+};