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use std::collections::HashMap;

impl Solution {
    pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
        let mut map = HashMap::with_capacity(nums.len());
        for (i, n) in nums.iter().copied().enumerate() {
            let i = i as i32;
            let r = target - n;
            if let Some(j) = map.get(&r) {
                let j = *j;

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pub fn snake_case_to_pascal_case(item: &str) -> String {
    let mut tmp = String::new();
    let mut upper = true;
    let mut last_char = ' ';
    for mut c in item.chars() {
        if c == '_' {
            upper = true;
            last_char = ' ';
            continue;
        }

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// https://stackoverflow.com/questions/44120220/calculating-normals-on-terrain-mesh
fn generate_normals(
    height_map: &image::ImageBuffer<image::Luma<u16>, Vec<u16>>, 
    normal_map: &mut image::ImageBuffer<image::Rgb<u8>, Vec<u8>>)
{
    let (cols, rows) = height_map.dimensions();
    let up = cgmath::vec3(0.0, 0.0, 1.0);
    //let mut normals = vec![up; (cols * rows) as usize];
    // the `size_factor` reduces to `width / 1024` with this `cell_size`.
    let cell_size = 1.0 / (cols as f32 / 128.0);

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use directx_math::*;

// http://number-none.com/product/Understanding%20Slerp,%20Then%20Not%20Using%20It/

// simd version:

fn slerp(mut Q0: XMVECTOR, Q1: XMVECTOR, t: f32) -> XMVECTOR {
    const DOT_THRESHOLD: XMVECTORF32 = XMVECTORF32 { f: [0.9995, 0.9995, 0.9995, 0.9995] };

    let mut dot = XMQuaternionDot(Q0, Q1);

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diff --git a/collector/slave_status.go b/collector/slave_status.go
index e343258..1fea965 100644
--- a/collector/slave_status.go
+++ b/collector/slave_status.go
@@ -18,7 +18,6 @@ package collector
 import (
 	"context"
 	"database/sql"
-	"fmt"
 	"strings"

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$ RUST_BACKTRACE=1 VK_ICD_FILENAMES=portability-linux-debug.json vulkaninfo > ~/vulkaninfo.txt

==========
VULKANINFO
==========

Vulkan Instance Version: 1.1.106

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<scheme name="Atom One Dark" version="142" parent_scheme="Darcula">
  <option name="FONT_SCALE" value="1.0" />
  <metaInfo>
    <property name="created">2019-03-19T21:00:29</property>
    <property name="ide">Idea</property>
    <property name="ideVersion">2018.3.5.0.0</property>
    <property name="modified">2019-03-19T21:01:04</property>
    <property name="originalScheme">_@user_Atom One Dark</property>
  </metaInfo>
  <option name="CONSOLE_FONT_NAME" value="Consolas" />