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{\tt \#include} $<${\tt{}stdio.h}$>$ \mbox{}\\
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{$/\ast$\it{}\mbox{}\\
\hspace*{1\indentation}$\ast$     To programma auto dhmiourgei ena kamba 200x100\mbox{}\\
\hspace*{1\indentation}$\ast$     kai sthn synexeia orizei thn synarthsh setpixel \mbox{}\\
\hspace*{1\indentation}$\ast$     h opoia mesa ston kamba anabei to pixel me \mbox{}\\
\hspace*{1\indentation}$\ast$     syntetagmenes x,y sthn RGB timh pou dinetai me \mbox{}\\
\hspace*{1\indentation}$\ast$     treis parametrous. \mbox{}\\
\hspace*{1\indentation}$\ast$\mbox{}\\
\hspace*{1\indentation}$\ast$     To apotelesma eksagete san arxeio eikonas\mbox{}\\
\hspace*{1\indentation}$\ast$     ppm to opoio mporeite na to anoiksete me \mbox{}\\
\hspace*{1\indentation}$\ast$     opoiodhpote paketo grafikwn (px gimp)\mbox{}\\
\hspace*{1\indentation}$\ast$\mbox{}\\
\hspace*{1\indentation}$\ast$     gia na to treksete dwste \mbox{}\\
\hspace*{1\indentation}$\ast$     gcc SetPixel.c\mbox{}\\
\hspace*{1\indentation}$\ast$     gia na to metaglwtisete kai sthn \mbox{}\\
\hspace*{1\indentation}$\ast$     synexeia \mbox{}\\
\hspace*{1\indentation}$\ast$     ./a.out $>$ test.ppm\mbox{}\\
\hspace*{1\indentation}$\ast$     opote 8a grapsei to arxeio eikonas \mbox{}\\
\hspace*{1\indentation}$\ast$     sto file test.ppm\mbox{}\\
\hspace*{1\indentation}$\ast$\mbox{}\\
\hspace*{1\indentation}$\ast$\mbox{}\\
\hspace*{1\indentation}$\ast/$}\mbox{}\\
\mbox{}\\
{\bf int} xres=200,yres=100;\mbox{}\\
{\bf int} i;\mbox{}\\
{\bf unsigned} {\bf char}  $\ast$pa; \mbox{}\\
{$/\ast$\it{}        Prosekste ton orismo tou pa san deikth \mbox{}\\
\hspace*{1\indentation}$\ast$        apo arrays pou apoteleitai apo short \mbox{}\\
\hspace*{1\indentation}$\ast$        integers. \mbox{}\\
\hspace*{1\indentation}$\ast/$}\mbox{}\\
\mbox{}\\
main()\mbox{}\\
\{\mbox{}\\
\hspace*{8\indentation}{\bf int} size;\mbox{}\\
\hspace*{8\indentation}\mbox{}\\
\hspace*{8\indentation}xres=200;\mbox{}\\
\hspace*{8\indentation}yres=100;\mbox{}\\
\hspace*{8\indentation}size=xres$\ast$yres$\ast$3;\mbox{}\\
\mbox{}\\
\hspace*{8\indentation}{\bf unsigned} {\bf char}  a[size];\mbox{}\\
\hspace*{8\indentation}pa=\&a[0];\mbox{}\\
\hspace*{8\indentation}size=xres$\ast$yres$\ast$3;\mbox{}\\
\mbox{}\\
\mbox{}\\
\hspace*{8\indentation}{$/\ast$\it{}\mbox{}\\
\hspace*{9\indentation}$\ast$ Gemizoume ton pinaka me stoixeia 0 dhladh \mbox{}\\
\hspace*{9\indentation}$\ast$ ton maurizw. \mbox{}\\
\hspace*{9\indentation}$\ast/$}\mbox{}\\
\hspace*{9\indentation}\mbox{}\\
\hspace*{8\indentation}{\bf for} (i=0; i $<$ size; i++)\mbox{}\\
\hspace*{16\indentation}a[i]=0;\mbox{}\\
\mbox{}\\
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setpixel(1,0,255,234,234);\mbox{}\\
{$/\ast$\it{}   Anabw to pixel 1,0 sthn RGB timh 255,234,234\mbox{}\\
\hspace*{1\indentation}$\ast/$}\mbox{}\\
setpixel(10,5,255,255,255);\mbox{}\\
{$/\ast$\it{}   Anabw to pixel 10,5 sthn RGB timh 255,255,255 (leuko)\mbox{}\\
\hspace*{1\indentation}$\ast/$}\mbox{}\\
\mbox{}\\
\mbox{}\\
\hspace*{8\indentation}{$/\ast$\it{} write file\mbox{}\\
\hspace*{9\indentation}$\ast$  Gia na katalabete pws paw na grapsw to arxeio grafikwn\mbox{}\\
\hspace*{9\indentation}$\ast$  ppm mporeite na diabasete ta specifications tou ppm\mbox{}\\
\hspace*{9\indentation}$\ast$  sthn selida \mbox{}\\
\hspace*{9\indentation}$\ast$  http://www.dcs.ed.ac.uk/home/mxr/gfx/2d/ppm.txt\mbox{}\\
\hspace*{9\indentation}$\ast$  h apla na dwsete \mbox{}\\
\hspace*{9\indentation}$\ast$  man ppm\mbox{}\\
\hspace*{9\indentation}$\ast$  se ena kala ry8mismeno \mbox{}\\
\hspace*{9\indentation}$\ast$  unix mhxanhma \mbox{}\\
\hspace*{9\indentation}$\ast/$}\mbox{}\\
\mbox{}\\
\hspace*{8\indentation}printf({\tt"\%s$\backslash$n"},{\tt"P3"});\mbox{}\\
\hspace*{8\indentation}printf({\tt"\%d$\backslash$t\%d$\backslash$n"},xres,yres);\mbox{}\\
\hspace*{8\indentation}printf({\tt"\%d$\backslash$n"},15);\mbox{}\\
\hspace*{8\indentation}\mbox{}\\
\hspace*{8\indentation}{\bf for} (i=0; i $<$ size; i++)\mbox{}\\
\hspace*{8\indentation}\{\mbox{}\\
\hspace*{16\indentation}printf({\tt"\%d\%s"},a[i],{\tt" "});\mbox{}\\
\hspace*{8\indentation}\}\mbox{}\\
\}\mbox{}\\
\mbox{}\\
{$/\ast$\it{}\mbox{}\\
\hspace*{1\indentation}$\ast$       Routina Set Pixel\mbox{}\\
\hspace*{1\indentation}$\ast$       Prosekste oti gia na perasw ton pinaka sthn \mbox{}\\
\hspace*{1\indentation}$\ast$       yporoutina kanw xrhsh pointer, kytakste thn \mbox{}\\
\hspace*{1\indentation}$\ast$       selida 141 tou Kernighan -Ritchie.\mbox{}\\
\hspace*{1\indentation}$\ast/$}\mbox{}\\
{\bf int} setpixel({\bf int} x, {\bf int} y, {\bf int} R, {\bf int} G, {\bf int} B)\mbox{}\\
\{\mbox{}\\
\hspace*{8\indentation}i=3$\ast$xres$\ast$y+3$\ast$x;\mbox{}\\
\hspace*{8\indentation}$\ast$(pa+i)=R;\mbox{}\\
\hspace*{8\indentation}$\ast$(pa+i+1)=G;\mbox{}\\
\hspace*{8\indentation}$\ast$(pa+i+2)=B;\mbox{}\\
\}\mbox{}\\
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