Whats wrong with this code?
#include
#include
using namespace std;
bool myCompare(string a, string b){
string ab = a.append(b);
string ba = b.append(a);
return ab > ba;
}
int main(){
int n, t;
cin>>t;
cin>>n;
while(t>0){
string a[n];
for(int i = 0; i<n; i++){
cin>>a[i];
}
sort(a, a+n, myCompare);
for(int i = 0; i<n; i++){
cout<<a[i];
}
cout<<endl;
t--;
}
return 0;
}
This code is failing every testcase.
Even if the code takes input ‘n’ for only once, then why cant we use it again and again as the input given to ‘n’ remains constant.
we have to take input for every test case to know about the number of strings.
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