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feat: add typescript solution to lc problem: No.2320

No.2320.Count Number of Ways to Place Houses

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Lines changed: 8 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -127,7 +127,14 @@ func countHousePlacements(n int) int {`
`127`	`127`	`### TypeScript`
`128`	`128`
`129`	`129`	```ts
`130`		`-`
	`130`	`+function countHousePlacements(n: number): number {`
	`131`	`+ const mod = BigInt(10 ** 9 + 7);`
	`132`	`+ let pre = 1n, count = 2n;`
	`133`	`+ for (let i = 2; i <= n; i++) {`
	`134`	`+ [count, pre] = [(count + pre) % mod, count];`
	`135`	`+ }`
	`136`	`+ return Number(count ** 2n % mod);`
	`137`	`+};`
`131`	`138`	```
`132`	`139`
`133`	`140`	`### ...`

Lines changed: 8 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -118,7 +118,14 @@ func countHousePlacements(n int) int {`
`118`	`118`	`### TypeScript`
`119`	`119`
`120`	`120`	```ts
`121`		`-`
	`121`	`+function countHousePlacements(n: number): number {`
	`122`	`+ const mod = BigInt(10 ** 9 + 7);`
	`123`	`+ let pre = 1n, count = 2n;`
	`124`	`+ for (let i = 2; i <= n; i++) {`
	`125`	`+ [count, pre] = [(count + pre) % mod, count];`
	`126`	`+ }`
	`127`	`+ return Number(count ** 2n % mod);`
	`128`	`+};`
`122`	`129`	```
`123`	`130`
`124`	`131`	`### ...`

Lines changed: 8 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,8 @@`
	`1`	`+function countHousePlacements(n: number): number {`
	`2`	`+ const mod = BigInt(10 ** 9 + 7);`
	`3`	`+ let pre = 1n, count = 2n;`
	`4`	`+ for (let i = 2; i <= n; i++) {`
	`5`	`+ [count, pre] = [(count + pre) % mod, count];`
	`6`	`+ }`
	`7`	`+ return Number(count ** 2n % mod);`
	`8`	`+};`

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