PSeInt profile CECyTEA

These are the rules of the CECyTEA profile, explained simply, with an example that follows them and opens in Codoritmo with one click.

Open in Codoritmo with this profile

Opens this page's example with the CECyTEA profile already switched on.

How its author describes it

The profile's original text, in Spanish, as distributed with PSeInt.

Perfil para los alumnos del Colegio de Estudios Científicos y Tecnológicos del Estado de Aguascalientes, Plantel Ferrocarriles. Usado para el submódulo "Desarrolla software utilizando programación estructurada" para los alumnos del profesor L. I. Rodrigo López Peña (RoLP).

In short

What changes compared with Codoritmo's default profile:

The Para counter is protected
No accents or ñ in variable names
Every statement must end with a semicolon
Only the symbols & | ~ % work as operators
No conditions like Es Par: comparisons use operators
Array sizes must be fixed numbers

All of its rules

Marked rules differ from Codoritmo's default profile; everything else behaves the same.

Variables

How they are declared and when they can be used.

Declare variables with Definir: Optional. You can use a variable without declaring it: its type comes from the first value you store in it.
Give a value before use: Not checked. It's still good practice to give every variable a value before using it.
Protected Para counterDiffers from default: Inside a Para you can't change the counter, and once the loop ends the counter has no value, so don't use it afterwards.
Accents and ñ in namesDiffers from default: Not allowed in variable or subroutine names: write anio or posicion. Accented keywords such as Según still work.

Writing style

Punctuation, closing words and how values are assigned.

Semicolon at the endDiffers from default: Required. Every statement ends in ;, as in Escribir "Hola";. Lines that open or close a structure (Si, FinSi, FinPara) don't take one.
Relaxed syntax: Accepts handy variants: Fin Si as two words, optional Entonces and Hacer, Mientras Que and Desde in loops, and values in Escribir separated by spaces.
Assign with =: Not allowed: you assign only with <-; = is only for comparing.

Operators and conditions

How comparisons are written and text is put together.

Word operatorsDiffers from default: Symbols only: & instead of Y (and), | instead of O (or), ~ instead of NO (not) and % instead of MOD.
Plain-language conditionsDiffers from default: Doesn't accept them: write the comparison with operators, such as x MOD 2 = 0 or x > 5.
Join text with +: Allowed: "Hola, " + nombre makes a single piece of text.

Arrays

Where indexes start and how the size is set.

First array index: Arrays start at 1: after Dimension notas[3] the slots are notas[1], notas[2] and notas[3].
Array size from a variableDiffers from default: Not allowed: the size in Dimension must be a fixed number, such as Dimension datos[10].
Resize arrays: You can change the size of an existing array with Redimensionar.

Loops and Segun

Which ways of repeating and choosing between cases it accepts.

Para Cada loop: Available: Para Cada nota de notas Hacer goes through every slot of an array.
Repetir … Mientras Que: A Repetir loop can end with Hasta Que condition (until) or Mientras Que condition (while).
Para counting down: If the start is greater than the end, Para counts down one by one even without Con Paso -1.
Segun with whole numbers: The value a Segun checks can also be text, with options such as "a".

Subroutines and text functions

Which extra tools you get to organise the program.

Your own subroutines and functions: You can write your own SubProceso or Funcion to split the program into parts.
Text functions: Available: Longitud, Subcadena, Mayusculas, Minusculas and Concatenar (length, substring, upper case, lower case, join).

An example that follows these rules

It works out the average of three marks. It's written for this profile, and the comments point out what changes compared with the default. We checked it with Codoritmo's interpreter using these same rules.

PerfilCECyTEA.psc · 31 lines

1// Example written with the rules of the CECyTEA profile2// Every statement ends with a semicolon3Algoritmo PerfilCECyTEA4    // Variable names have no accents or ñ5    // The array size must be a fixed number6    Dimension notas[3];7    notas[1] <- 8;8    notas[2] <- 9;9    notas[3] <- 7;10    suma <- 0;11    Para i <- 1 Hasta 3 Hacer12        // Inside the Para you can't change i13        suma <- suma + notas[i];14    FinPara15    promedio <- suma / 3;16    nombre <- "Ana";17    Escribir "Hi, ", nombre;18    Escribir "Average: ", promedio;19    // No word operators: & instead of Y, % instead of MOD20    Si promedio >= 7 & promedio <= 10 Entonces21        Escribir "Passed";22    SiNo23        Escribir "Failed";24    FinSi25    // Es Par isn't accepted: the condition uses operators26    Si suma % 2 = 0 Entonces27        Escribir "The sum is even: ", suma;28    SiNo29        Escribir "The sum is odd: ", suma;30    FinSi31FinAlgoritmo

What it prints

This is the example's real output, run with the CECyTEA profile.

Hi, Ana
Average: 8
Passed
The sum is even: 24