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14 lines
276 B
C++
14 lines
276 B
C++
class Solution {
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public:
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int getMissingNumber(vector<int>& nums) {
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set<int> s;
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for (int i = 0; i <= nums.size(); i++) {
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s.insert(i);
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}
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for (int i : nums) {
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s.erase(i);
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}
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return *s.begin();
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}
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};
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