PSeInt profile UNL FICH

These are the rules of the UNL FICH 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 UNL FICH profile already switched on.

How its author describes it

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

Esta es la configuración que se utiliza en la asignatura "Fundamentos de Programación" de la carrera "Ingeniería en Informática" de la "Facultad de Ingeniería y Ciencias Hídricas" de la "Universidad Nacional del Litoral".

In short

What changes compared with Codoritmo's default profile:

Every variable needs a value before it is used
The Para counter is protected
Entonces, Hacer and endings such as FinSi must be written in full
No conditions like Es Par: comparisons use operators
Text can't be joined with +
Repetir only ends with Hasta Que
Counting down needs Con Paso -1
No SubProceso or Funcion of your own
No text functions such as Longitud or Subcadena

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 useDiffers from default: Required. Reading a variable, or an array slot, that has no value yet stops the program with an error. That's why accumulators start with something like suma <- 0.
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 names: Allowed: a variable can be called año or posición.

Writing style

Punctuation, closing words and how values are assigned.

Semicolon at the end: Optional. You can end statements with ; or leave it out.
Relaxed syntaxDiffers from default: Strict: write every structure in full, with Entonces, Hacer and one-word endings such as FinSi and FinMientras.
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 operators: You can write Y, O, NO and MOD (and, or, not, remainder) as well as their symbols &, |, ~ and %.
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 +Differs from default: Not allowed: to show several values together, separate them with commas in Escribir.

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 variable: Allowed: you can read n and then write Dimension datos[n].
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 QueDiffers from default: A Repetir loop can only end with Hasta Que condition (until).
Para counting downDiffers from default: To count down you must write Con Paso -1; without it, Para i <- 3 Hasta 1 doesn't run at all.
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 functionsDiffers from default: Not allowed: the whole program goes inside Algoritmo … FinAlgoritmo.
Text functionsDiffers from default: Not available: this profile has no Longitud, Subcadena, Mayusculas, Minusculas or Concatenar.

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.

PerfilUNLFICH.psc · 38 lines

1// Example written with the rules of the UNL FICH profile2// Strict syntax: Entonces, Hacer and FinSi always in full3// This profile has no SubProceso or Funcion: everything goes inside Algoritmo4Algoritmo PerfilUNLFICH5    Dimension notas[3]6    notas[1] <- 87    notas[2] <- 98    notas[3] <- 79    // Every variable needs a value before it is used10    suma <- 011    Para i <- 1 Hasta 3 Hacer12        // Inside the Para you can't change i13        suma <- suma + notas[i]14    FinPara15    promedio <- suma / 316    nombre <- "Ana"17    // + doesn't join text: Escribir separates values with commas18    Escribir "Hi, ", nombre19    Escribir "Average: ", promedio20    Si promedio >= 7 Y promedio <= 10 Entonces21        Escribir "Passed"22    SiNo23        Escribir "Failed"24    FinSi25    // Es Par isn't accepted: the condition uses operators26    Si suma MOD 2 = 0 Entonces27        Escribir "The sum is even: ", suma28    SiNo29        Escribir "The sum is odd: ", suma30    FinSi31    Escribir "Countdown:"32    // Counting down needs Con Paso -133    Para i <- 3 Hasta 1 Con Paso -1 Hacer34        Escribir i35    FinPara36    // Longitud, Mayusculas and the other text functions aren't available37    // Repetir can only end with Hasta Que38FinAlgoritmo

What it prints

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

Hi, Ana
Average: 8
Passed
The sum is even: 24
Countdown:
3
2
1