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feat: add ts solution to lc problem: No.1763

No.1763.Longest Nice Substring

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Original file line number	Diff line number	Diff line change
`@@ -109,6 +109,30 @@ class Solution {`
`109`	`109`
`110`	`110`	```
`111`	`111`
	`112`	`+### TypeScript`
	`113`	`+`
	`114`	+```ts
	`115`	`+function longestNiceSubstring(s: string): string {`
	`116`	`+ const n = s.length;`
	`117`	`+ let ans = '';`
	`118`	`+ for (let i = 0; i < n; i++) {`
	`119`	`+ let lower = 0, upper = 0;`
	`120`	`+ for (let j = i; j < n ; j++) {`
	`121`	`+ const c = s.charCodeAt(j);`
	`122`	`+ if (c > 96) {`
	`123`	`+ lower \|= 1 << (c - 97);`
	`124`	`+ } else {`
	`125`	`+ upper \|= 1 << (c - 65);`
	`126`	`+ }`
	`127`	`+ if (lower == upper && (j - i + 1) > ans.length) {`
	`128`	`+ ans = s.substring(i, j + 1);`
	`129`	`+ }`
	`130`	`+ }`
	`131`	`+ }`
	`132`	`+ return ans;`
	`133`	`+};`
	`134`	+```
	`135`	`+`
`112`	`136`	`### C++`
`113`	`137`
`114`	`138`	```cpp

Lines changed: 24 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -99,6 +99,30 @@ class Solution {`
`99`	`99`
`100`	`100`	```
`101`	`101`
	`102`	`+### TypeScript`
	`103`	`+`
	`104`	+```ts
	`105`	`+function longestNiceSubstring(s: string): string {`
	`106`	`+ const n = s.length;`
	`107`	`+ let ans = '';`
	`108`	`+ for (let i = 0; i < n; i++) {`
	`109`	`+ let lower = 0, upper = 0;`
	`110`	`+ for (let j = i; j < n ; j++) {`
	`111`	`+ const c = s.charCodeAt(j);`
	`112`	`+ if (c > 96) {`
	`113`	`+ lower \|= 1 << (c - 97);`
	`114`	`+ } else {`
	`115`	`+ upper \|= 1 << (c - 65);`
	`116`	`+ }`
	`117`	`+ if (lower == upper && (j - i + 1) > ans.length) {`
	`118`	`+ ans = s.substring(i, j + 1);`
	`119`	`+ }`
	`120`	`+ }`
	`121`	`+ }`
	`122`	`+ return ans;`
	`123`	`+};`
	`124`	+```
	`125`	`+`
`102`	`126`	`### C++`
`103`	`127`
`104`	`128`	```cpp

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Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,19 @@`
	`1`	`+function longestNiceSubstring(s: string): string {`
	`2`	`+ const n = s.length;`
	`3`	`+ let ans = '';`
	`4`	`+ for (let i = 0; i < n; i++) {`
	`5`	`+ let lower = 0, upper = 0;`
	`6`	`+ for (let j = i; j < n ; j++) {`
	`7`	`+ const c = s.charCodeAt(j);`
	`8`	`+ if (c > 96) {`
	`9`	`+ lower \|= 1 << (c - 97);`
	`10`	`+ } else {`
	`11`	`+ upper \|= 1 << (c - 65);`
	`12`	`+ }`
	`13`	`+ if (lower == upper && (j - i + 1) > ans.length) {`
	`14`	`+ ans = s.substring(i, j + 1);`
	`15`	`+ }`
	`16`	`+ }`
	`17`	`+ }`
	`18`	`+ return ans;`
	`19`	`+};`

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