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_Nishat_tasnim

106 Assignment

Mar 21st, 2021
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  1. #include<stdio.h>
  2.  
  3. void fn(int n)
  4. {
  5. if (n==1)
  6. {
  7. int s,i,a=0;
  8. float b=0.0;
  9. scanf("%d",&s);
  10. int arr[s];
  11. for(i=0; i<s; i++)
  12. {
  13. scanf("%d",&arr[i]);
  14. a+=arr[i];
  15. }
  16. b=(float)a/(float)s;
  17. printf("%.1f\n",b);
  18. }
  19. else if(n==2)
  20. {
  21. int s,i,a,b,big=-5,biggi=0,sm=500000,smi=0,c,d;
  22. scanf("%d",&s);
  23. int arr[s];
  24. for(i=0; i<s; i++)
  25. {
  26. scanf("%d",&arr[i]);
  27.  
  28. }
  29. for(i=0; i<s; i++)
  30. {
  31. if(arr[i]<sm)
  32. {
  33. sm=arr[i];
  34. smi=i;
  35. }
  36. }
  37. for(i=0; i<s; i++)
  38. {
  39. if(arr[i]>big)
  40. {
  41. big=arr[i];
  42. biggi=i;
  43. }
  44. arr[biggi]=sm;
  45. printf("%d ",arr[i]);
  46. }
  47. }
  48. else if(n==3)
  49. {
  50. int s,i;
  51. scanf("%d",&s);
  52. int arr[s];
  53. for(i=0; i<s; i++)
  54. {
  55. scanf("%d",&arr[i]);
  56. if(i==arr[i])
  57. {
  58. printf("%d\n",i);
  59. }
  60. }
  61. }
  62. }
  63.  
  64.  
  65. int main()
  66. {
  67. int n;
  68. scanf("%d",&n);
  69. fn(n);
  70. }
  71.  
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