An Easy Problem

An Easy Problem

时间限制：1000 ms  |  内存限制：65535 KB
难度：1

描述    In this problem, you are given two integers L and R, and your task is to calculate the sum of all the number's square between L and R(inclusive).

输入The first line contains an integer T, indicates the number of test case.

The next T lines, each line contains two integers L and R(1≤L,R≤10^5).
输出Print an integer represents the sum.
样例输入

2
1 2
2 4

样例输出

5
29

import java.math.BigInteger;
import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int times = scanner.nextInt();
while (times-- != 0) {
long start = scanner.nextInt();
long end = scanner.nextInt();
BigInteger result = BigInteger.ZERO;
if (start > end) {
long temp = end;
end = start;
start = temp;
}
for (long i = start; i <= end; i++) {
result = result.add(BigInteger.valueOf(i * i));
}
System.out.println(result);
}
}

}