How to optimize the code for 10 power 5 output

Please help me to find out how to optimize this code for 10 to the power 5 output in java. It's show time limit error. Even i try to use HashMap in place of DP array. I tried all the method which i know to optimize this. For bigger output i used long as datatype.

public static void main(String args) throws Exception {
Scanner s = new Scanner(System.in);
int t = s.nextInt();
HashMap<Long, Long> hash = new HashMap<Long, Long>();
for (int i = 0; i < t; i++) {
int n = s.nextInt();
int a = s.nextInt();
int b = s.nextInt();
long val = Long.MAX_VALUE;
if (a == b) {
if (n % 2 == 0) {
int ans = (n / 2) * (n / 2);
val = (a * ans) + (b * ans);
} else {
int ans = n / 2;
val = (a * (ans * ans)) + (b * ((ans + 1) * (ans + 1)));
}
} else {
for (long j = 0; j <= n; j++) {
if (hash.containsKey(j) && hash.containsKey(n - j)) {
long cal = (a * hash.get(j)) + (b * hash.get(n - j));
if (val > cal) {
val = cal;
}
} else {
if (!hash.containsKey(j)) {
hash.put(j, j * j);
}
if (!hash.containsKey(n - j)) {
hash.put(n - j, (n - j) * (n - j));
}
long cal = (a * hash.get(j)) + (b * hash.get(n - j));
if (val > cal) {
val = cal;
}
}
}
}
System.out.println(val);
}
}


javascript !== java

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.