View Compilation Error

0_0_36487509_24520.c: In function 'dfs1':
0_0_36487509_24520.c:23:1: error: expected expression before '/' token
 //    printf("(%d,%d) ", xx, yy);
 ^
0_0_36487509_24520.c: In function 'main':
0_0_36487509_24520.c:99:1: error: expected expression before '/' token
 //  printf("%d\n", cnt);
 ^