Created
November 19, 2013 07:03
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PHP solution to Project Euler problem # 9.
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| <?php | |
| /** | |
| * Problem 9: Special Pythagorean triplet | |
| * A Pythagorean triplet is a set of three natural numbers, a < b < c, for which, | |
| * a^2 + b^2 = c^2 | |
| * For example, 3^2 + 4^2 = 9 + 16 = 25 = 5^2. | |
| * | |
| * There exists exactly one Pythagorean triplet for which a + b + c = 1000. | |
| * Find the product abc. | |
| */ | |
| for($i=1;$i<1000; $i++) { | |
| for($j=$i+1; $j<1000; $j++) { | |
| $k = 1000-$i-$j; | |
| if(($k*$k) == ($i*$i + $j*$j)) { | |
| echo "Pythagorian triplet: $i, $j, $k for which $i+$j+$k = 1000 and product = ", $i*$j*$k; | |
| break 2; | |
| } | |
| } | |
| } | |
| ?> |
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