<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 details{
    public:
        string name, city;
        int time, money;
};
class Solution {
public:
    vector<string> invalidTransactions(vector<string>& transactions) {
                int n=transactions.size();
        vector<details> info;
        vector<string> result;
        for(auto transaction : transactions){
            details d;
            string temp="";
            int counter=0;
            for(int i=0;i<transaction.size();i++){
                if(transaction[i]==','){
                    if(counter==0) d.name=temp;
                    else if(counter==1) d.time=stoi(temp);
                    else if(counter==2) d.money=stoi(temp);
                    temp="";
                    counter++;
                }else{
                    temp.push_back(transaction[i]);
                }
            }
            d.city=temp;
            info.push_back(d);
        }
           for(int i=0;i<info.size();i++){
            bool flag=false;
            if(info[i].money>1000){
                result.push_back(transactions[i]);
                continue;
            }
            for(int j=0;j<info.size();j++){
                if(i==j) continue;
                if(info[i].name==info[j].name and info[i].city!=info[j].city and abs(info[i].time-info[j].time)<=60){
                    flag=true;
                    break;
                } 
            }
            if(flag) result.push_back(transactions[i]);
        }
    return result;     
    }
};
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