/in/foo.c: In function 'main':
/in/foo.c:11:37: warning: iteration 2 invokes undefined behavior [-Waggressive-loop-optimizations]
   11 |                         b[i][j]=a[j][i];
      |                                 ~~~~^~~
/in/foo.c:8:26: note: within this loop
    8 |                 for(j=0;j<3;j++)
      |                         ~^~
/in/foo.c:17:33: warning: iteration 2 invokes undefined behavior [-Waggressive-loop-optimizations]
   17 |                                 printf("%d",b[i][j]);
      |                                 ^~~~~~~~~~~~~~~~~~~~
/in/foo.c:14:26: note: within this loop
   14 |                 for(i=0;i<=2;i++)
      |                         ~^~~