5 lines of Solution , Simple
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\npublic:\n    bool isGoodArray(vector<int>& nm) {\n        int n=nm.size();\n        int it=0;\n        for(int i=0; i<n; i++){\n            it=__gcd(it, nm[i]);\n        }\n        return (it==1);\n    }\n};\n```
['C++']