class Solution {
public:
bool Find(int target, vector<vector<int> > array) {
bool flag = false;
for(int i = 0;i<array.size();i++){ //array.size()是数组的行数
for(int j = 0;j<array[i].size();j++){
if(array[i][j] == target)
flag = true;
}
}
return flag;
}
};



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