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90 changes: 90 additions & 0 deletions solution/0900-0999/0962.Maximum Width Ramp/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,96 @@ func maxWidthRamp(nums []int) int {
}
```

#### TypeScript

```ts
function maxWidthRamp(nums: number[]): number {
let [ans, n] = [0, nums.length];
const stk: number[] = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)!] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)!] <= nums[i]) {
ans = Math.max(ans, i - stk.pop()!);
}
if (stk.length === 0) break;
}

return ans;
}
```

#### JavaScript

```js
function maxWidthRamp(nums) {
let [ans, n] = [0, nums.length];
const stk = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)] <= nums[i]) {
ans = Math.max(ans, i - stk.pop());
}
if (stk.length === 0) break;
}

return ans;
}
```

<!-- tabs:end -->

<!-- solution:end -->

<!-- solution:start -->

### 方法二:排序

<!-- tabs:start -->

#### TypeScript

```ts
function maxWidthRamp(nums: number[]): number {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
```

#### JavaScript

```js
function maxWidthRamp(nums) {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
```

<!-- tabs:end -->

<!-- solution:end -->
Expand Down
92 changes: 91 additions & 1 deletion solution/0900-0999/0962.Maximum Width Ramp/README_EN.md
Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,7 @@ tags:

<!-- solution:start -->

### Solution 1
### Solution 1: Monotonic stack

<!-- tabs:start -->

Expand Down Expand Up @@ -150,6 +150,96 @@ func maxWidthRamp(nums []int) int {
}
```

#### TypeScript

```ts
function maxWidthRamp(nums: number[]): number {
let [ans, n] = [0, nums.length];
const stk: number[] = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)!] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)!] <= nums[i]) {
ans = Math.max(ans, i - stk.pop()!);
}
if (stk.length === 0) break;
}

return ans;
}
```

#### JavaScript

```js
function maxWidthRamp(nums) {
let [ans, n] = [0, nums.length];
const stk = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)] <= nums[i]) {
ans = Math.max(ans, i - stk.pop());
}
if (stk.length === 0) break;
}

return ans;
}
```

<!-- tabs:end -->

<!-- solution:end -->

<!-- solution:start -->

### Solution 2: Sorting

<!-- tabs:start -->

#### TypeScript

```ts
function maxWidthRamp(nums: number[]): number {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
```

#### JavaScript

```js
function maxWidthRamp(nums) {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
```

<!-- tabs:end -->

<!-- solution:end -->
Expand Down
19 changes: 19 additions & 0 deletions solution/0900-0999/0962.Maximum Width Ramp/Solution.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
function maxWidthRamp(nums) {
let [ans, n] = [0, nums.length];
const stk = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)] <= nums[i]) {
ans = Math.max(ans, i - stk.pop());
}
if (stk.length === 0) break;
}

return ans;
}
19 changes: 19 additions & 0 deletions solution/0900-0999/0962.Maximum Width Ramp/Solution.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
function maxWidthRamp(nums: number[]): number {
let [ans, n] = [0, nums.length];
const stk: number[] = [];

for (let i = 0; i < n - 1; i++) {
if (stk.length === 0 || nums[stk.at(-1)!] > nums[i]) {
stk.push(i);
}
}

for (let i = n - 1; i >= 0; i--) {
while (stk.length && nums[stk.at(-1)!] <= nums[i]) {
ans = Math.max(ans, i - stk.pop()!);
}
if (stk.length === 0) break;
}

return ans;
}
11 changes: 11 additions & 0 deletions solution/0900-0999/0962.Maximum Width Ramp/Solution2.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
function maxWidthRamp(nums) {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
11 changes: 11 additions & 0 deletions solution/0900-0999/0962.Maximum Width Ramp/Solution2.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
function maxWidthRamp(nums: number[]): number {
const idx = nums.map((x, i) => [x, i]).sort(([a], [b]) => a - b);
let [ans, j] = [0, nums.length];

for (const [_, i] of idx) {
ans = Math.max(ans, i - j);
j = Math.min(j, i);
}

return ans;
}
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