My issue
sol.cpp: In function ‘int main()’:
sol.cpp:16:13: error: ‘sort’ was not declared in this scope; did you mean ‘short’?
16 | sort(arr,arr+n);
| ^~~~
| short
My code
#include <iostream>
using namespace std;
int main() {
// your code goes here
int t;
cin>>t;
while(t--){
int n;
cin>>n;
int count=0;
int arr[n];
for(int i=0;i<n;i++){
cin>>arr[i];
}
sort(arr,arr+n);
for(int i=0;i<n;i++){
if(arr[i]==arr[i+1])
count++;
}
int result;
result=n-count;
cout<<result<<endl;
}
return 0;
}
Learning course: Arrays, Strings & Sorting
Problem Link: Practice Problem in - CodeChef