Commit777a5cd

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refactor 634

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+12

-10

lines changed

+12

-10

lines changed

Lines changed: 12 additions & 10 deletions

Original file line number	Diff line number	Diff line change
`@@ -18,17 +18,19 @@`
`18`	`18`	`n is in the range of [1, 106].`
`19`	`19`	`*/`
`20`	`20`	`publicclass_634 {`
`21`		`-/**`
`22`		`- * reference: https://discuss.leetcode.com/topic/94442/java-5-lines-o-1-space-solution`
`23`		`- * and https://leetcode.com/articles/find-derangements/#approach-5-using-formula-accepted`
`24`		`- */`
`25`		`-privatestaticfinalintM =1000000007;`
	`21`	`+publicstaticclassSolution1 {`
	`22`	`+/**`
	`23`	`+ * reference: https://discuss.leetcode.com/topic/94442/java-5-lines-o-1-space-solution`
	`24`	`+ * and https://leetcode.com/articles/find-derangements/#approach-5-using-formula-accepted`
	`25`	`+ */`
	`26`	`+privatestaticfinalintM =1000000007;`
`26`	`27`
`27`		`-publicintfindDerangement(intn) {`
`28`		`-longans =1;`
`29`		`-for (inti =1;i <=n;i++) {`
`30`		`-ans = (i *ans %M + (i %2 ==0 ?1 : -1)) %M;`
	`28`	`+publicintfindDerangement(intn) {`
	`29`	`+longans =1;`
	`30`	`+for (inti =1;i <=n;i++) {`
	`31`	`+ans = (i *ans %M + (i %2 ==0 ?1 : -1)) %M;`
	`32`	`+ }`
	`33`	`+return (int)ans;`
`31`	`34`	`}`
`32`		`-return (int)ans;`
`33`	`35`	`}`
`34`	`36`	`}`

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