Python (Simple Maths)
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:\n    def minimumMoney(self, transactions):\n        n, loss, max_val = len(transactions), 0, 0 \n\n        for i in range(n):\n            cost, cashback = transactions[i]\n\n            if cost > cashback:\n                loss += cost-cashback\n                max_val = max(max_val,cashback)\n            else:\n                max_val = max(max_val,cost)\n\n        return max_val + loss \n```
['Python3']