ProjectEuler 009题

题目：

A Pythagorean triplet is a set of three natural numbers, a b c, for which,

a² +
b² = c²

For example, 3² + 4² = 9 + 16 = 25 = 5².

There exists exactly one Pythagorean triplet for which a +
b + c = 1000.
Find the product abc.

代码：

 1 #include<iostream>

 2 using namespace std;

 3

 4 int main() {

 5

 6     for(int i = 1; i < 333; i++){

 7         for(int j = 1; j <= 999; j++)

 8             for(int k = 1; k <= 999; k++){

 9                 if((i*i + j*j) == (k*k) && (i+j+k) == 1000)

10                     cout << i << " " << j << " " << k << endl;

11             }

12     }

13

14     system("pause");

15     return 0;

16 }