# Python: Find the maximum profit in one transaction

## Python Basic - 1: Exercise-77 with Solution

The price of a given stock on each day is stored in an array.

Write a Python program to find the maximum profit in one transaction i.e., buy one and sell one share of the stock from the given price value of the said array. You cannot sell a stock before you buy one.

Input (Stock price of each day): [224, 236, 247, 258, 259, 225]

Output: 35

Explanation:

236 - 224 = 12

247 - 224 = 23

258 - 224 = 34

259 - 224 = 35

225 - 224 = 1

247 - 236 = 11

258 - 236 = 22

259 - 236 = 23

225 - 236 = -11

258 - 247 = 11

259 - 247 = 12

225 - 247 = -22

259 - 258 = 1

225 - 258 = -33

225 - 259 = -34

**Sample Solution**:

**Python Code:**

```
def max_profit(stock_price):
max_profit_amt = 0
for i in range(len(stock_price)):
profit_amt = 0
for j in range(i+1, len(stock_price)):
profit_amt = stock_price[j] - stock_price[i]
if profit_amt > max_profit_amt:
max_profit_amt = profit_amt
return max_profit_amt
print(max_profit([224, 236, 247, 258, 259, 225]))
```

Sample Output:

35

**Flowchart:**

**Python Code Editor:**

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