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Update 0343.整数拆分.md

新增0343.整数拆分.md PHP 版本

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`@@ -469,6 +469,34 @@ object Solution {`
`469`	`469`	`}`
`470`	`470`	```
`471`	`471`
	`472`	`+`
	`473`	`+### PHP`
	`474`	+```php
	`475`	`+class Solution {`
	`476`	`+`
	`477`	`+ /**`
	`478`	`+ * @param Integer $n`
	`479`	`+ * @return Integer`
	`480`	`+ */`
	`481`	`+ function integerBreak($n) {`
	`482`	`+ if($n == 0 \|\| $n == 1) return 0;`
	`483`	`+ if($n == 2) return 1;`
	`484`	`+`
	`485`	`+ $dp = [];`
	`486`	`+ $dp[0] = 0;`
	`487`	`+ $dp[1] = 0;`
	`488`	`+ $dp[2] = 1;`
	`489`	`+ for($i=3;$i<=$n;$i++){`
	`490`	`+ for($j = 1;$j <= $i/2; $j++){`
	`491`	`+ $dp[$i] = max(($i-$j)$j, $dp[$i-$j]$j, $dp[$i]);`
	`492`	`+ }`
	`493`	`+ }`
	`494`	`+`
	`495`	`+ return $dp[$n];`
	`496`	`+ }`
	`497`	`+}`
	`498`	+```
	`499`	`+`
`472`	`500`	`<p align="center">`
`473`	`501`	`<a href="https://programmercarl.com/other/kstar.html" target="_blank">`
`474`	`502`	`<img src="../pics/网站星球宣传海报.jpg" width="1000"/>`

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