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2043.简易银行系统.js
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2043.简易银行系统.js
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/*
* @lc app=leetcode.cn id=2043 lang=javascript
*
* [2043] 简易银行系统
*/
// @lc code=start
/**
* @param {number[]} balance
*/
var Bank = function (balance) {
this.balance = balance;
};
/**
* @param {number} account1
* @param {number} account2
* @param {number} money
* @return {boolean}
*/
Bank.prototype.transfer = function (account1, account2, money) {
if (account1 > this.balance.length || account2 > this.balance.length) {
return false;
}
if (this.balance[account1 - 1] < money) {
return false;
}
this.balance[account1 - 1] -= money;
this.balance[account2 - 1] += money;
return true;
};
/**
* @param {number} account
* @param {number} money
* @return {boolean}
*/
Bank.prototype.deposit = function (account, money) {
if (account > this.balance.length) {
return false;
}
this.balance[account - 1] += money;
return true;
};
/**
* @param {number} account
* @param {number} money
* @return {boolean}
*/
Bank.prototype.withdraw = function (account, money) {
if (account > this.balance.length) {
return false;
}
if (this.balance[account - 1] < money) {
return false;
}
this.balance[account - 1] -= money;
return true;
};
/**
* Your Bank object will be instantiated and called as such:
* var obj = new Bank(balance)
* var param_1 = obj.transfer(account1,account2,money)
* var param_2 = obj.deposit(account,money)
* var param_3 = obj.withdraw(account,money)
*/
// @lc code=end