Procedure runs alone -Pascal

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I made a code in pascal that reads two images type pgm and checks if one is contained in the other, but when reading the second image, instead of reading the program simply warns that the type of image is wrong, based on the verifier I did, I do not know what the reason is, because the first image he reads without problems.

Reading procedure:

procedure ler_img(var o:imagem; var l,c,max:longint);
var y,x:longint;
    s:string;
begin
    read(s);
    if s = 'P2' then
    begin
        read(c,l);
        read(max);
        for y:=1 to l do 
            for x:=1 to c do 
                read(o[y,x]);
    end
    else 
        writeln('tipo errado!');
end;

Core programme:

begin
    ler_img(imgO,lO,cO,maxO);

    ler_img(imgP,lP,cP,maxP);

    ocorrencia(imgO,imgP,lO,lP,cO,cP);

    writeln('imagem1');
    imprimir_imagem(imgO,lO,cO,maxO);

    writeln('imagem2');
    imprimir_imagem(imgP,lP,cP,maxP);

end.

the reading and printing of the first image occurs normally, but the second image is not read and prints the following 

imagem1
P2
3 3
10
1 2 3 
4 5 6 
7 8 9 

imagem2
P2
0 0
0
image matrix pascal

1 answer

1


Change all occurrences of read, to readln. If you use read the " n" will be stored.

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