in cpp version code works fine locally on my visual studio and gives the right output while when i do test or attempt it gives wrong output on the site

Example Error:
Expected: equal to (1, 999, 999)
Actual: (1, 118, 999)

While it gives (1, 999, 999) on my visual studio
all error like this on the site when i tried it on my visual studio it gives the EXPECTED CORRECTLY!