Simple Solution || O(1) || O(1) || CPP
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:O(1)\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:O(1)\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\npublic:\n    bool isRectangleOverlap(vector<int>& rec1, vector<int>& rec2) {\n        if((rec1[2]>rec2[0] && rec1[3]>rec2[1]) && (rec1[0]<rec2[2] && rec1[1]<rec2[3]))return true;\n        return false;\n    }\n};                                                     \n```
['C++']