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Oct 12th, 2017
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  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4. <meta charset="utf-8" />
  5. <title>zadanie </title>
  6. <style>
  7.  
  8. </style>
  9. </head>
  10. <body>
  11. <div>
  12. <script type="text/javascript">
  13. var n = 50;
  14. function definiuj()
  15. {
  16. tab = new Array(n);
  17. }
  18. function losuj()
  19. {
  20. for(var i = 0; i < n; i++)
  21. tab[i]=Math.floor(Math.random()*99+1);
  22. }
  23. function wyswietl ()
  24. {
  25. for(var i = 0; i < n; i++)
  26. if(tab[i] % 2 == 0){
  27. document.write("<b>"+tab[i]+"</b>"+" ");
  28. }
  29. else{
  30. document.write(tab[i]+" ");
  31. }
  32. }
  33.  
  34. function srednia(){
  35. var il = 0;
  36. var suma = 0;
  37. for(var i = 0; i < n; i++){
  38. if(tab[i] % 2 == 0){
  39. il++;
  40. suma += tab[i];
  41. }
  42. }
  43. console.log(il);
  44. console.log(suma);
  45. suma = suma / il;
  46. return suma;
  47. }
  48.  
  49.  
  50. document.write("Losowa <1;99> zawartość tablicy 50 elementowej " + ":<br />");
  51. definiuj();
  52. losuj();
  53. wyswietl();
  54. document.write("<br />Średnia elementów parzystych tablicy: "+srednia());
  55. </script>
  56. </div>
  57. </body>
  58. </html>
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