Bank Account Rules

Encapsulation keeps an object's data private and only changes it through methods that enforce the rules. A bank account's balance can only change through deposit and withdraw.

Start with a balance of 0 and process the operations, each deposit <amount> or withdraw <amount>:

• An amount that is 0 or negative is rejected.
• A withdrawal larger than the current balance is rejected.
• Otherwise the balance changes.

Implement bank_account_rules(operations).

Input

operations: The operations, in order.

Output

Return [final_balance, rejected_count].

เงื่อนไข

0 ≤ number of operations ≤ 100,000

−10^9 ≤ amount ≤ 10^9

ตัวอย่าง

อินพุต:
operations = ["deposit 100", "withdraw 30", "withdraw 200"]

ผลลัพธ์ที่คาดหวัง:
expected = [70, 1]

อินพุต:
std::vector<std::string> operations = {"deposit 100", "withdraw 30", "withdraw 200"};

ผลลัพธ์ที่คาดหวัง:
std::vector<long long> expected = {70, 1};

อินพุต:
string[] operations = new string[] {"deposit 100", "withdraw 30", "withdraw 200"};

ผลลัพธ์ที่คาดหวัง:
long[] expected = new long[] {70, 1};

อินพุต:
operations = ["deposit -5", "withdraw 0", "deposit 10"]

ผลลัพธ์ที่คาดหวัง:
expected = [10, 2]

อินพุต:
std::vector<std::string> operations = {"deposit -5", "withdraw 0", "deposit 10"};

ผลลัพธ์ที่คาดหวัง:
std::vector<long long> expected = {10, 2};

อินพุต:
string[] operations = new string[] {"deposit -5", "withdraw 0", "deposit 10"};

ผลลัพธ์ที่คาดหวัง:
long[] expected = new long[] {10, 2};

แหล่งอ้างอิง

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