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lan-qiao-bei-yi-dong-ju-chi.html
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<!DOCTYPE HTML>
<html lang="zh-CN">
<head><meta name="generator" content="Hexo 3.9.0">
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<meta name="keywords" content="蓝桥杯移动距离, IT学习">
<meta name="description" content=" &#x79FB;&#x52A8;&#x8DD">
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<title>蓝桥杯移动距离 | IT学习</title>
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<body>
<style>
@media only screen and (max-width: 422px){
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nav ul a {padding: 0px;}
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标签
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</li>
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<a href="/categories" class="waves-effect waves-light">
<i class="fa fa-fw fa-bookmark"></i>
分类
</a>
</li>
<li class="m-nav-item">
<a href="/archives" class="waves-effect waves-light">
<i class="fa fa-fw fa-archive"></i>
归档
</a>
</li>
<li class="m-nav-item">
<a href="javascript:;">
<i class="fa fa-fw fa-user-circle-o"></i>
关于
<span class="m-icon"><i class="fa fa-chevron-right"></i></span>
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<ul >
<li>
<a href="/about " style="margin-left:75px";>
<i class="fa fa-user-circle-o" style="position: absolute;left:50px" ></i>
<span>自我介绍</span>
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留言板
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<body>
</body>
<script>
window.requestAnimationFrame = (function(){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
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window.setTimeout( callback, 1000/2 );
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var myCanvas = document.getElementById("canvas111");
var ctx = myCanvas.getContext("2d");//getContext 设置画笔
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cX:Math.random()*0.6-0.3,
cY:Math.random()*0.6-0.3,
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r: Math.floor(Math.random() * 254),
g: Math.floor(Math.random() * 254),
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// console.log(duixiang[i])
Cricle(duixiang[i].x,duixiang[i].y,duixiang[i].R,duixiang[i].r,duixiang[i].g,duixiang[i].b);
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if(Math.random()>0.991) {ctx.globalAlpha= 0.9;}//ctx.fillStyle = "#CCC";}//填充的背景颜色
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ctx.beginPath();//开始绘画
ctx.arc(x,y,R,Math.PI*2,0);//绘画圆 x y 半径（大小） 角度 一个PI 是180 * 2 = 360 真假 0/1 true/false
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ctx.fill();//填充背景颜色
ctx.restore();//回复路径
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ctx.clearRect(0,0,w,h)//先清除画布上的点
for(var i = 0;i < num;i++){
duixiang[i].x += duixiang[i].cX;
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duixiang[i].cX = -duixiang[i].cX;
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duixiang[i].cY = -duixiang[i].cY;
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Cricle(duixiang[i].x,duixiang[i].y,duixiang[i].R,duixiang[i].r,duixiang[i].g,duixiang[i].b);
//勾股定理判断两点是否连线
for(var j = i + 1;j < num;j++){
if( (duixiang[i].x-duixiang[j].x)*(duixiang[i].x-duixiang[j].x)+(duixiang[i].y-duixiang[j].y)*(duixiang[i].y-duixiang[j].y) <= 55*55 ){
line(duixiang[i].x,duixiang[i].y,duixiang[j].x,duixiang[j].y,0,i,j)
}
if(move.x){
if( (duixiang[i].x-move.x)*(duixiang[i].x-move.x)+(duixiang[i].y-move.y)*(duixiang[i].y-move.y) <= 100*100 ){
line(duixiang[i].x,duixiang[i].y,move.x,move.y,1,i,1)
}
}
}
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window.requestAnimationFrame(draw)
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color.addColorStop(0,"rgb("+ duixiang[i].r +","+ duixiang[i].g +","+ duixiang[i].b +")");
color.addColorStop(0.8,"#019ee5");
}
else
{
var color = ctx.createLinearGradient(x1,y1,x2,y2);
ctx.globalAlpha=0.9;
color.addColorStop(0,"rgb("+ duixiang[i].r +","+ duixiang[i].g +","+ duixiang[i].b +")");
color.addColorStop(1,"rgb("+ duixiang[j].r +","+ duixiang[j].g +","+ duixiang[j].b +")");
}
ctx.save();
ctx.strokeStyle = color;
ctx.lineWidth = 0.5;
ctx.beginPath();
ctx.moveTo(x1,y1);
ctx.lineTo(x2,y2);
ctx.stroke();
//ctx.restore();
}
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// move.x = e.clientX;
// move.y = e.clientY;
//}
//console.log(move)
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}*/
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#canvas1 {
position: fixed;
pointer-events:none;//鼠标多层响应事件
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height: 100%;
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overflow: auto;
z-index: 999;
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{ for (var i = 0; i < props.length; i++)
{var descriptor = props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if ("value" in descriptor)
descriptor.writable = true;Object.defineProperty(target, descriptor.key, descriptor);}}
return function (Constructor, protoProps, staticProps)
{if (protoProps) defineProperties(Constructor.prototype, protoProps);
if (staticProps) defineProperties(Constructor, staticProps);
return Constructor;};}();function _classCallCheck(instance, Constructor)
{if (!(instance instanceof Constructor)) {throw new TypeError("Cannot call a class as a function");}}
var getRandom = function getRandom(min, max) {
return Math.random() * (max - min) + min;
};
var getRandomInt = function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min)) + min;
};
var getRandomColor = function getRandomColor() {
var colors = [
'rgba(231, 76, 60, 1)', // red
'rgba(241, 196, 15, 1)', // yellow
'rgba(46, 204, 113, 1)', // green
'rgba(52, 152, 219, 1)', // blue
'rgba(155, 89, 182, 1)' // purple
];
return colors[getRandomInt(0, colors.length)];
};
// Particle//粒子模块
var
Particle = function () {
function Particle(system, x, y) {_classCallCheck(this, Particle);
this.system = system;
this.universe = this.system.world.universe;
this.x = x;
this.y = y;
this.color = getRandomColor();
this.life = 1;
this.aging = getRandom(0.990, 0.999); // 0.99, 0.999 || 0.999, 0.9999
this.r = getRandomInt(12, 16);//初始粒子半径范围
this.speed = getRandom(18, 18.5);//粒子爆炸速度范围
this.velocity = [
getRandom(-this.speed, this.speed),
getRandom(-this.speed, this.speed)];
}_createClass(Particle, [{ key: 'update', value: function update(
dt) {
this.life *= this.aging;
if (
this.r < 0.1 ||
this.life === 0 ||
this.x + this.r < 0 ||
this.x - this.r > this.universe.width ||
this.y + this.r < 0 ||
this.y - this.r > this.universe.height)
{
this.system.removeObject(this);
}
this.r *= this.life;
this.x += this.velocity[0];
this.y += this.velocity[1];
} }, { key: 'render', value: function render(
ctx) {
// Main circle //亮圈模块
ctx.fillStyle = this.color;
ctx.beginPath();
ctx.arc(this.x, this.y, this.r*1.2, 0, 2 * Math.PI, false);
ctx.fill();
ctx.closePath();
var r = this.color.match(/([0-9]+)/g)[0];
var g = this.color.match(/([0-9]+)/g)[1];
var b = this.color.match(/([0-9]+)/g)[2];
// Gradient//梯度变化曲线
var spread = 1.5;
var gradient = ctx.createRadialGradient(
this.x, this.y, this.r,
this.x, this.y, this.r * spread);
gradient.addColorStop(0, 'rgba(' + r + ', ' + g + ', ' + b + ', 0.5)');
gradient.addColorStop(1, 'rgba(' + r + ', ' + g + ', ' + b + ', 0)');
ctx.globalCompositeOperation = 'lighter';
ctx.fillStyle = gradient;
ctx.beginPath();
ctx.arc(this.x, this.y, this.r * spread, 0, 2 * Math.PI, false);
ctx.fill();
ctx.closePath();
ctx.globalCompositeOperation = 'source-over';
// Aberration//偏差
var offset = this.r * 0.5;
var color = 'rgba(' + g + ', ' + b + ', ' + r + ', 0.5)';
ctx.globalCompositeOperation = 'lighter';
ctx.fillStyle = color;
ctx.beginPath();
ctx.arc(this.x + offset, this.y + offset, this.r, 0, 2 * Math.PI, false);
ctx.fill();
ctx.closePath();
ctx.globalCompositeOperation = 'source-over';
} }]);return Particle;}();
// Crown //水波纹圈模块
var
Crown = function () {
function Crown(system, x, y) {_classCallCheck(this, Crown);
this.system = system;
this.x = x;
this.y = y;
this.r = getRandomInt(5, 15); // 5, 20 水波纹圈半径范围
this.mod = 1.1;
this.life = 0.5; //水波纹线
this.aging = getRandom(0.830, 0.899);
this.speed = getRandom(8, 9);
this.color = {
r: getRandomInt(236, 242),
g: getRandomInt(70, 80),
b: getRandomInt(50, 70) };
this.angle1 = Math.PI * getRandom(0, 2);
this.angle2 = this.angle1 + Math.PI * getRandom(0.3, 0.4);//水波纹圈完整度
}_createClass(Crown, [{ key: 'update', value: function update(
dt) {
this.life *= this.aging;
if (this.life <= 0.0001) this.system.removeObject(this);
this.r += Math.abs(1 - this.life) * this.speed;
this.x1 = this.x + this.r * Math.cos(this.angle1);
this.y1 = this.y + this.r * Math.sin(this.angle1);
this.angle3 = this.angle1 + (this.angle2 - this.angle1) / 2;
this.x2 = this.x + this.r * this.mod * Math.cos(this.angle3);
this.y2 = this.y + this.r * this.mod * Math.sin(this.angle3);
} }, { key: 'render', value: function render(
ctx) {
var gradient = ctx.createRadialGradient(
this.x, this.y, this.r * 0.9,
this.x, this.y, this.r);
gradient.addColorStop(0, 'rgba(' + this.color.r + ', ' + this.color.g + ', ' + this.color.b + ', ' + this.life + ')');
gradient.addColorStop(1, 'rgba(' + this.color.r + ', ' + this.color.g + ', ' + this.color.b + ', ' + this.life * 0.5 + ')');
ctx.fillStyle = gradient;
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, this.angle1, this.angle2, false);
ctx.quadraticCurveTo(this.x2, this.y2, this.x1, this.y1);
ctx.fill();
ctx.closePath();
} }]);return Crown;}();
// Explosion //爆炸模块
var
Explosion = function () {
function Explosion(world, x, y) {_classCallCheck(this, Explosion);
this.world = world;
this.x = x;
this.y = y;
this.objects = [];
var particles = getRandomInt(10, 30); // 10, 30 amount of particles//爆炸 粒子数量
var crowns = particles * getRandom(0.4, 0.5);
while (crowns-- > 0) {this.addCrown();}
while (particles-- > 0) {this.addParticle();}
}_createClass(Explosion, [{ key: 'update', value: function update(
dt) {
this.objects.forEach(function (obj) {
if (obj) obj.update(dt);
});
if (this.objects.length <= 0) {
this.world.clearExplosion(this);
}
} }, { key: 'render', value: function render(
ctx) {
this.objects.forEach(function (obj) {
if (obj) obj.render(ctx);
});
} }, { key: 'addCrown', value: function addCrown()
{
this.objects.push(new Crown(this, this.x, this.y));
} }, { key: 'addParticle', value: function addParticle()
{
this.objects.push(new Particle(this, this.x, this.y));
} }, { key: 'removeObject', value: function removeObject(
obj) {
var index = this.objects.indexOf(obj);
if (index !== -1) {
this.objects.splice(index, 1);
}
} }]);return Explosion;}();
// World
var
ConfettiWorld = function () {function ConfettiWorld()
{_classCallCheck(this, ConfettiWorld);}_createClass(ConfettiWorld, [{ key: 'init', value: function init()
{
this.objects = [];
window.addEventListener('click', this.explode.bind(this));
// Initial explosion //初始爆炸
var counter = 0;
while (counter-- > 0) {
this.explode({
clientX: window.event.clientX, //getRandomInt(10, this.universe.width) , //this.universe.width / 2,
clientY: window.event.clientY //getRandomInt(10, 50) //this.universe.height / 2
});
}
} }, { key: 'update', value: function update(
dt) {
this.objects.forEach(function (obj) {
if (obj) obj.update(dt);
});
var amount = this.objects.reduce(function (sum, explosion) {
return sum += explosion.objects.length;
}, 0);
} }, { key: 'render', value: function render(
ctx) {
this.objects.forEach(function (obj) {
if (obj) obj.render(ctx);
});
} }, { key: 'explode', value: function explode(
event) {
var x = event.clientX;
var y = event.clientY;
this.objects.push(new Explosion(this, x, y));
} }, { key: 'clearExplosion', value: function clearExplosion(
explosion) {
var index = this.objects.indexOf(explosion);
if (index !== -1) {
this.objects.splice(index, 1);
}
} }]);return ConfettiWorld;}();
// Time
var
Time = function () {
function Time() {_classCallCheck(this, Time);
this.now = 0; // current tick time
this.prev = 0; // prev tick time
this.elapsed = 0; // elapsed time from last tick
this.delta = 0; // time from last update
this.fps = 60; // desired fps
this.step = 1 / 60; // step duration
}_createClass(Time, [{ key: 'update', value: function update(
time) {
this.now = time;
this.elapsed = (this.now - this.prev) / 1000;
this.prev = this.now;
this.delta += this.elapsed;
} }, { key: 'raf', value: function raf(
func) {
window.requestAnimationFrame(func);
} }, { key: 'hasFrames', value: function hasFrames()
{
return this.delta >= this.step;
} }, { key: 'processFrame', value: function processFrame()
{
this.delta -= this.step;
} }]);return Time;}();
// Canvas
var
Universe = function () {
function Universe(element) {_classCallCheck(this, Universe);
this.el = element;
this.ctx = this.el.getContext('2d');
this.pixelRatio = window.devicePixelRatio;
this.time = new Time();
this.worlds = {};
this.world = null; // current state
this.updateSize();
window.addEventListener('resize', this.updateSize.bind(this));
this.addWorld('confetti', ConfettiWorld);
this.setWorld('confetti');
this.start();
}_createClass(Universe, [{ key: 'start', value: function start()
{
this.time.raf(this.tick.bind(this));
} }, { key: 'tick', value: function tick(
time) {
this.time.update(time);
if (this.time.hasFrames()) {
this.update();
this.time.processFrame();
}
this.render();
this.time.raf(this.tick.bind(this));
} }, { key: 'update', value: function update()
{
this.world.update(this.time.step);
} }, { key: 'render', value: function render()
{
var gradient = this.ctx.createLinearGradient(0, 0, this.width, this.height);
// gradient.addColorStop(0, '#34495e');
//gradient.addColorStop(1, '#2c3e50');
this.ctx.clearRect(0, 0, this.width, this.height);
// this.ctx.fillStyle = '#2c3e50'
// //this.ctx.fillStyle = gradient;
// // this.ctx.fillRect(0, 0, this.width, this.height);
this.world.render(this.ctx);
}
// Helpers 库
}, { key: 'updateSize', value: function updateSize()
{
this.width = window.innerWidth;
this.height = window.innerHeight;
this.el.width = this.width * this.pixelRatio;
this.el.height = this.height * this.pixelRatio;
this.el.style.width = window.innerWidth + 'px';
this.el.style.height = window.innerHeight + 'px';
this.ctx.scale(this.pixelRatio, this.pixelRatio);
} }, { key: 'addWorld', value: function addWorld(
worldName, World) {
this.worlds[worldName] = new World();
this.worlds[worldName].universe = this;
this.worlds[worldName].init();
} }, { key: 'setWorld', value: function setWorld(
worldName) {
this.world = this.worlds[worldName];
} }]);return Universe;}();
// Main
console.clear();
var element = document.querySelector('#canvas1');
window.Canvas= new Universe(element);</script>
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蓝桥杯移动距离
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<p><blockquote> <h1> 移动距离</h1> <h3>X星球居民小区的楼房全是一样的，并且按矩阵样式排列。其楼房的编号为1,2,3…<br> 当排满一行时，从下一行相邻的楼往反方向排号。<br> 比如：当小区排号宽度为6时，开始情形如下：</h3> <h3>1 2 3 4 5 6<br> 12 11 10 9 8 7<br> 13 14 15 …..</h3> <h3>我们的问题是：已知了两个楼号m和n，需要求出它们之间的最短移动距离（不能斜线方向移动）</h3> <h3>输入为3个整数w m n，空格分开，都在1到10000范围内<br> w为排号宽度，m,n为待计算的楼号。<br> 要求输出一个整数，表示m n 两楼间最短移动距离。</h3> <h3>例如：<br> 用户输入：<br> 6 8 2<br> 则，程序应该输出：<br> 4</h3> <h3>再例如：<br> 用户输入：<br> 4 7 20<br> 则，程序应该输出：<br> 5</h3> <h3>资源约定：<br> 峰值内存消耗 < 256M<br> CPU消耗 < 1000ms</h3> <h3><br> 请严格按要求输出，不要画蛇添足地打印类似：“请您输入…” 的多余内容。</h3> <h3>所有代码放在同一个源文件中，调试通过后，拷贝提交该源码。</h3> <h3>注意: main函数需要返回0<br> 注意: 只使用ANSI C/ANSI C++ 标准，不要调用依赖于编译环境或操作系统的特殊函数。<br> 注意: 所有依赖的函数必须明确地在源文件中 #include <xxx>， 不能通过工程设置而省略常用头文件。</h3> <h3>提交时，注意选择所期望的编译器类型。</h3> </blockquote> </p><p> </p> <blockquote> <p><span style="color: rgb(51,153,234);">思路： 这题找找规律就好了 看看序列加上 坐标后变成什么了</span></p> </blockquote> <p style="text-align: center;"><img src="https://uploadfiles.nowcoder.com/images/20190720/683055227_1563577417738_A7009F652FC3AB0BCAC44EE22A5E819C" data-original="https://uploadfiles.nowcoder.com/images/20190720/683055227_1563577417738_A7009F652FC3AB0BCAC44EE22A5E819C"></p> <blockquote> <p> <span style="color: rgb(51,153,234);"> 目标 2 的坐标 （0 ，1） 目标 8 的坐标 （1 ，4） 他们的横纵坐标 相减 （1-0，4-1）===> (1,3)</span></p> <p><span style="color: rgb(51,153,234);"> 再 横纵坐标相加 1+3=4 （想想 此时就是从（0，0）点 到（1，3）点 不能斜着走最最短 直接横纵坐标相加即可）</span></p> </blockquote> <p> </p> <blockquote> <p><span style="color: rgb(51,153,234);"> 于是就得获取两点坐标 ，坐标直接通过取整取模就可获得 （毕竟 他是按顺序编号的）</span></p> <p><span style="color: rgb(51,153,234);"> 把原序列 全部减1 从0 开始（为了好取模取整 C语言习惯0 开始） 然后找坐标 ，通过取整可以得到属于哪一行 取模得到那一列</span></p> <p><span style="color: rgb(51,153,234);"> （但为偶数行的时候 去模后的值就是距离最左边距离，奇数行时 取模后的值是距离右边的距离 所以 要用最每行长度-取模的值）</span></p> </blockquote> <p> </p> <p style="text-align: center;"><img src="https://uploadfiles.nowcoder.com/images/20190720/683055227_1563577417841_01B9A6B000CBACEBEAC8CD4438F5C53D" data-original="https://uploadfiles.nowcoder.com/images/20190720/683055227_1563577417841_01B9A6B000CBACEBEAC8CD4438F5C53D"></p> <div class="has"><p></p>