[hackerrank]Manasa and Stones

#include<iostream>
using namespace std;

int main() {
int T;
cin >> T;
while (T--) {
int n, a, b;
cin >> n >> a >> b;
// a < b
if ( a > b) {
int tmp = a;
a = b;
b = tmp;
}
int last = 0;
for (int i = 0; i < n; i++) {
int x = i * b + (n - i - 1) * a;
if (x != last) {
last = x;
cout << x << " ";
}
}
cout << endl;
}
return 0;
}