July 01, 2004
Detecting Source-Code Plagiarism
(a)
File 1 File 2
1 /* begin routine */ 1 /* find the file extension */
2 void fdiv( 2 void file_divide(
3 char *fname, // file name 3 char *fname,
4 char *path) /* path */ 4 char *path) // path
5 { 5 {
6 int Index1, j; 6 int i, j; /* begin routine */
7 7 while (1) // loop here
8 while (1) 8 j = strlen(fname);
9 j = strlen(fname); 9
10 // find the file extension 10 switch (x)
11 if (x == 5) { 11 {
(b)
File 1 File 2 1 /* begin routine */ 6 int i, j; /* begin routine */ 4 char *path) /* path */ 4 char *path) // path 10 // find the file extension 1 /* find the file extension */
Figure 4: Comment Line Matching. (a) Two files; (b) matching comment lines in File 1 and File 2.
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