Invalid write of size 2
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:47)
 Address 0x........ is 0 bytes inside a block of size 1 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: main (cu42.c:47)

Invalid write of size 4
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:53)
 Address 0x........ is 0 bytes inside a block of size 1 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: main (cu42.c:53)

Invalid write of size 4
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:56)
 Address 0x........ is 0 bytes inside a block of size 2 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: main (cu42.c:56)

Invalid write of size 4
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:59)
 Address 0x........ is 0 bytes inside a block of size 3 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: main (cu42.c:59)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:72)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:77)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:82)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:87)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:92)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: do_cu42 (cu42.c:31)
   by 0x........: main (cu42.c:104)