#include
#include
#include
#include
using namespace std;
bool comp(int a,int b)
{
string s1=to_string(a);
string s2=to_string(b);
int a1=stoi(s1+s2);
int a2=stoi(s2+s1);
return a1>a2;
}
int main() {
int t;
cin>>t;
while(t–){
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;++i)
cin>>arr[i];
sort(arr,arr+n,comp);
for(int i=0;i<n;++i)
cout<<arr[i];
cout<<endl;
}
return 0;
}
Hello @diamond_saroha first you are taking the array as integer and then you are cinverting it into string array then why not you take the input as of string array only.
this is the corrected code:
if you have any doutbt you can ask here:
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