class Solution {
public:
//将数组排序,遍历,从正数开始进行检测
int minNumberDisappeared(vector<int>& nums) {
sort(nums.begin(), nums.end());
int ben = 1;
for(int i=0; i<nums.size(); i++){
if(nums[i] > 0){
if(nums[i] != ben){
return ben;
}else{
ben++;
}
}
}
return ben;
}
};

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