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resolucion tarea algoritmos #7

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resolucion tarea algoritmos #7

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46 changes: 46 additions & 0 deletions index.html
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<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.container {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
font-weight: normal;
background-color: cadetblue;
}
.innerBox{
/* width: 100%; */
display:inline-flex;
flex-shrink: 1;
background: whitesmoke;
padding: 40px;
margin: 10px;
box-sizing: border-box;
justify-content: center;
align-items: center;
text-align: center;
}
.text {
font-size: 30px;
display: inline-flex;
flex-shrink: 1;
font-weight: 600;
padding: 10px;
}

</style>
</head>
<body>
<div class="container">
<div class="innerBox">
<p class="text" id="listaOrdenada"></p>
</div>
</div>
<script src="tarea.js"></script>
</body>
</html>
67 changes: 67 additions & 0 deletions tarea.js
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// 1.- planteamineto del problema: se tiene una lista desordenada de numeros ,
// con diferentes valores que van del 0 al 13, para lo cual se busca ordenarlos con un algoritmo Quicksort
// , para lo cual tenemos en la lista un numero ya conocido el cual es 0.
// 2.- por tanto los datos de entrada, seran una cantidad N de numeros, qiue tienen valor ente 0 - 13, lo cual indica que pueden ser: [0,2,12,11,5,1,6,9,3,10,4,7,8,12,3,2,1,8].
// 3.- se tienen que hacer un comprativo entre numeros determinando cual es mayor a cual y ordenando de mayor a menor, ya que lo que se pide resolver en el problema es que la primera posicion sea a0,
// a0 por tanto sera siempre el primer numero del array que hagamos
// entonces se hara el ordenamiento, no importando que haya numeros repetidos.


const ordenarDeMenorAmayor = (a, b) => {
if (a < b) {
return -1;
}
if (a > b) {
return 1;
}
return 0;
};

const quickSort = (
arrayDesordenado,
ordenamientoAlgoritmo = ordenarDeMenorAmayor
) => {

const ordenarArray = [...arrayDesordenado];

const cambiarDeLugar = (arrayAmover, i, j) => {
const a = arrayAmover[i];
arrayAmover[i] = arrayAmover[j];
arrayAmover[j] = a;
};

const particion = (arrayDivision, start, end) => {
const pivote = arrayDivision[end];
let separarIndice = start;
for (let j = start; j <= end - 1; j++) {
const sortValue = ordenamientoAlgoritmo(arrayDivision[j], pivote);
if (sortValue === -1) {
cambiarDeLugar(arrayDivision, separarIndice, j);
separarIndice++;
}
}
cambiarDeLugar(arrayDivision, separarIndice, end);
return separarIndice;
};


const recursiveSort = (arraytoSort, start, end) => {

if (start < end) {
const pivotePosition = particion(arraytoSort, start, end);
recursiveSort(arraytoSort, start, pivotePosition - 1);
recursiveSort(arraytoSort, pivotePosition + 1, end);
}
};

//ordenar el array
recursiveSort(ordenarArray, 0, arrayDesordenado.length - 1);
return ordenarArray;
};

const listaN = [45,2,12,11,5,1,6,9,3,100,4,7,8,12,3,2,1,8];
const ListNordenada = quickSort(listaN);
// console.log(ListNordenada);
document.getElementById('listaOrdenada').innerHTML =
`Esta es la lista ordenada: <br> ${ListNordenada.join(', ')}<br> <br>
el resultado de a0 es =${ListNordenada[0]}`;