<p>A transaction is possibly invalid if:</p>

<ul>
	<li>the amount exceeds <code>$1000</code>, or;</li>
	<li>if it occurs within (and including) <code>60</code> minutes of another transaction with the <strong>same name</strong> in a <strong>different city</strong>.</li>
</ul>

<p>You are given an array of strings <code>transaction</code> where <code>transactions[i]</code> consists of comma-separated values representing the name, time (in minutes), amount, and city of the transaction.</p>

<p>Return a list of <code>transactions</code> that are possibly invalid. You may return the answer in <strong>any order</strong>.</p>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input:</strong> transactions = [&quot;alice,20,800,mtv&quot;,&quot;alice,50,100,beijing&quot;]
<strong>Output:</strong> [&quot;alice,20,800,mtv&quot;,&quot;alice,50,100,beijing&quot;]
<strong>Explanation:</strong> The first transaction is invalid because the second transaction occurs within a difference of 60 minutes, have the same name and is in a different city. Similarly the second one is invalid too.</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> transactions = [&quot;alice,20,800,mtv&quot;,&quot;alice,50,1200,mtv&quot;]
<strong>Output:</strong> [&quot;alice,50,1200,mtv&quot;]
</pre>

<p><strong class="example">Example 3:</strong></p>

<pre>
<strong>Input:</strong> transactions = [&quot;alice,20,800,mtv&quot;,&quot;bob,50,1200,mtv&quot;]
<strong>Output:</strong> [&quot;bob,50,1200,mtv&quot;]
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>transactions.length &lt;= 1000</code></li>
	<li>Each <code>transactions[i]</code> takes the form <code>&quot;{name},{time},{amount},{city}&quot;</code></li>
	<li>Each <code>{name}</code> and <code>{city}</code> consist of lowercase English letters, and have lengths between <code>1</code> and <code>10</code>.</li>
	<li>Each <code>{time}</code> consist of digits, and represent an integer between <code>0</code> and <code>1000</code>.</li>
	<li>Each <code>{amount}</code> consist of digits, and represent an integer between <code>0</code> and <code>2000</code>.</li>
</ul>

class info {
public:
    string name;
    int price;
    int time;
    string city;
};

class Solution {
public:
    vector<string> invalidTransactions(vector<string>& transactions) {
        vector<info> arr;
        for(int i = 0;i < transactions.size();i++) {
            string temp = "";
            info a;
            int count = 0;
            for(int j = 0;j < transactions[i].length();j++) {
                if(transactions[i][j] == ',') {
                    if(count == 0)
                        a.name = temp;
                    else if(count == 1)
                        a.time = stoi(temp);
                    else if(count == 2)
                        a.price = stoi(temp);
                    temp = "";
                    count++;
                }
                else
                    temp.push_back(transactions[i][j]);
            }
            a.city = temp;
            arr.push_back(a);
        }

        vector<string> ans;

        for(int i = 0;i < arr.size();i++) {
            if(arr[i].price > 1000) {
                ans.push_back(transactions[i]);
                continue;
            }
            bool invalid = false;
            for(int j = 0;j < arr.size();j++) {
                if(i == j)
                    continue;
                if(arr[i].name == arr[j].name && arr[i].city != arr[j].city && abs(arr[i].time - arr[j].time) <= 60) {
                    invalid = true;
                    break;
                }
            }
            if(invalid)
                ans.push_back(transactions[i]);
        }
        return ans;
    }
};
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