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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int frames = 3;
  5.     int ref[] = {7, 0, 1, 2, 0, 3, 0, 4};
  6.     int n = 8;
  7.  
  8.     int frame[3];
  9.     int i, j, k = 0;
  10.     int pageFaults = 0;
  11.     int found;
  12.  
  13.     // Initialize frames
  14.     for (i = 0; i < frames; i++)
  15.         frame[i] = -1;
  16.  
  17.     printf("PAGE\tFRAMES\n");
  18.  
  19.     for (i = 0; i < n; i++) {
  20.         found = 0;
  21.  
  22.         // Check if page already exists
  23.         for (j = 0; j < frames; j++) {
  24.             if (frame[j] == ref[i]) {
  25.                 found = 1;
  26.                 break;
  27.             }
  28.         }
  29.  
  30.         // Page fault
  31.         if (!found) {
  32.             frame[k] = ref[i];
  33.             k = (k + 1) % frames;
  34.             pageFaults++;
  35.         }
  36.  
  37.         // Print frame status
  38.         printf("%d\t", ref[i]);
  39.         for (j = 0; j < frames; j++) {
  40.             if (frame[j] == -1)
  41.                 printf("-");
  42.             else
  43.                 printf("%d", frame[j]);
  44.         }
  45.         printf("\n");
  46.     }
  47.  
  48.     printf("\nTotal Page Faults = %d\n", pageFaults);
  49.     return 0;
  50. }
Success #stdin #stdout 0s 5316KB
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stdin
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Standard input is empty
stdout
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PAGE	FRAMES
7	7--
0	70-
1	701
2	201
0	201
3	231
0	230
4	430

Total Page Faults = 7
https://ideone.com/53dExn
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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