Bank

class Bank {
    int n;
    vector<long long>balance;
public:
    Bank(vector<long long>& balance) {
        this->balance=balance;
        n=balance.size();
    }
    
    bool transfer(int account1, int account2, long long money) {
        if(account1<1||account1>n)return false;
        if(account2<1||account2>n)return false;
        if(money>balance[account1-1])return false;
        balance[account1-1]-=money;
        balance[account2-1]+=money;
        return true;
    }
    
    bool deposit(int account, long long money) {
        if(account<1||account>n)return false;
        balance[account-1]+=money;
        return true;
    }
    
    bool withdraw(int account, long long money) {
        if(account<1||account>n)return false;
        if (money > balance[account - 1]) return false;
        balance[account-1]-=money;
        return true;
    }
};

/**
 * Your Bank object will be instantiated and called as such:
 * Bank* obj = new Bank(balance);
 * bool param_1 = obj->transfer(account1,account2,money);
 * bool param_2 = obj->deposit(account,money);
 * bool param_3 = obj->withdraw(account,money);
 */