算法1-Java

import java.util.Date;

class Test {
    public static void main(String[] args) {
        long t1 = new Date().getTime();

        for (int a = 0; a < 1001; a++) {
            for (int b = 0; b < 1001; b++) {
                for (int c = 0; c < 1001; c++) {
                    if (a * a + b * b == c * c && a + b + c == 1000) {
                        System.out.println("a: " + a + ",b: " + b + ",c: " + c);
                    }
                }
            }
        }

        long t2 = new Date().getTime();
        System.out.printf("一共花费的时间为 %d ms", (t2-t1)); // 1568 1875 1538 1612 1553

    }
}

a: 0,b: 500,c: 500
a: 200,b: 375,c: 425
a: 375,b: 200,c: 425
a: 500,b: 0,c: 500
一共花费的时间为 1669