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feat: add solutions to lc problems: No.2559 (doocs#3918)

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Lines changed: 23 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -306,15 +306,29 @@ func vowelStrings(words []string, queries [][]int) []int {`
`306`	`306`	```ts
`307`	`307`	`function vowelStrings(words: string[], queries: number[][]): number[] {`
`308`	`308`	`const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
`309`		`- const n = words.length;`
`310`		`- const s: number[] = new Array(n + 1).fill(0);`
`311`		`- for (let i = 0; i < n; ++i) {`
`312`		`- if (vowels.has(words[i][0]) && vowels.has(words[i][words[i].length - 1])) {`
`313`		`- s[i + 1] = s[i] + 1;`
`314`		`- } else {`
`315`		`- s[i + 1] = s[i];`
`316`		`- }`
`317`		`- }`
	`309`	`+ const s = new Array(words.length + 1).fill(0);`
	`310`	`+`
	`311`	`+ words.forEach((w, i) => {`
	`312`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)!));`
	`313`	`+ s[i + 1] = s[i] + x;`
	`314`	`+ });`
	`315`	`+`
	`316`	`+ return queries.map(([l, r]) => s[r + 1] - s[l]);`
	`317`	`+}`
	`318`	+```
	`319`	`+`
	`320`	`+#### JavaScript`
	`321`	`+`
	`322`	+```js
	`323`	`+function vowelStrings(words, queries) {`
	`324`	`+ const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
	`325`	`+ const s = new Array(words.length + 1).fill(0);`
	`326`	`+`
	`327`	`+ words.forEach((w, i) => {`
	`328`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)));`
	`329`	`+ s[i + 1] = s[i] + x;`
	`330`	`+ });`
	`331`	`+`
`318`	`332`	`return queries.map(([l, r]) => s[r + 1] - s[l]);`
`319`	`333`	`}`
`320`	`334`	```

Lines changed: 23 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -304,15 +304,29 @@ func vowelStrings(words []string, queries [][]int) []int {`
`304`	`304`	```ts
`305`	`305`	`function vowelStrings(words: string[], queries: number[][]): number[] {`
`306`	`306`	`const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
`307`		`- const n = words.length;`
`308`		`- const s: number[] = new Array(n + 1).fill(0);`
`309`		`- for (let i = 0; i < n; ++i) {`
`310`		`- if (vowels.has(words[i][0]) && vowels.has(words[i][words[i].length - 1])) {`
`311`		`- s[i + 1] = s[i] + 1;`
`312`		`- } else {`
`313`		`- s[i + 1] = s[i];`
`314`		`- }`
`315`		`- }`
	`307`	`+ const s = new Array(words.length + 1).fill(0);`
	`308`	`+`
	`309`	`+ words.forEach((w, i) => {`
	`310`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)!));`
	`311`	`+ s[i + 1] = s[i] + x;`
	`312`	`+ });`
	`313`	`+`
	`314`	`+ return queries.map(([l, r]) => s[r + 1] - s[l]);`
	`315`	`+}`
	`316`	+```
	`317`	`+`
	`318`	`+#### JavaScript`
	`319`	`+`
	`320`	+```js
	`321`	`+function vowelStrings(words, queries) {`
	`322`	`+ const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
	`323`	`+ const s = new Array(words.length + 1).fill(0);`
	`324`	`+`
	`325`	`+ words.forEach((w, i) => {`
	`326`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)));`
	`327`	`+ s[i + 1] = s[i] + x;`
	`328`	`+ });`
	`329`	`+`
`316`	`330`	`return queries.map(([l, r]) => s[r + 1] - s[l]);`
`317`	`331`	`}`
`318`	`332`	```

Lines changed: 11 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,11 @@`
	`1`	`+function vowelStrings(words, queries) {`
	`2`	`+ const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
	`3`	`+ const s = new Array(words.length + 1).fill(0);`
	`4`	`+`
	`5`	`+ words.forEach((w, i) => {`
	`6`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)));`
	`7`	`+ s[i + 1] = s[i] + x;`
	`8`	`+ });`
	`9`	`+`
	`10`	`+ return queries.map(([l, r]) => s[r + 1] - s[l]);`
	`11`	`+}`

Lines changed: 7 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,13 +1,11 @@`
`1`	`1`	`function vowelStrings(words: string[], queries: number[][]): number[] {`
`2`	`2`	`const vowels = new Set(['a', 'e', 'i', 'o', 'u']);`
`3`		`- const n = words.length;`
`4`		`- const s: number[] = new Array(n + 1).fill(0);`
`5`		`- for (let i = 0; i < n; ++i) {`
`6`		`- if (vowels.has(words[i][0]) && vowels.has(words[i][words[i].length - 1])) {`
`7`		`- s[i + 1] = s[i] + 1;`
`8`		`- } else {`
`9`		`- s[i + 1] = s[i];`
`10`		`- }`
`11`		`- }`
	`3`	`+ const s = new Array(words.length + 1).fill(0);`
	`4`	`+`
	`5`	`+ words.forEach((w, i) => {`
	`6`	`+ const x = +(vowels.has(w[0]) && vowels.has(w.at(-1)!));`
	`7`	`+ s[i + 1] = s[i] + x;`
	`8`	`+ });`
	`9`	`+`
`12`	`10`	`return queries.map(([l, r]) => s[r + 1] - s[l]);`
`13`	`11`	`}`

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