Why is the output only world

Question

https://code.sololearn.com/cp328Mxu41sv/?ref=app

Answer 1

Print the string "Hello world" starting from 6th character
↓
index |0|1|2|3|4|5|6|7|8|9|0|1|2|3|4|5
char |H|e| l | l|o| |w|o|r| l|d|

Answer 2

printf(6+"Hello world");
Is the same as:

char* p = "Hello world";
printf( *(p+6));

You are giving printf the pointer to the beginning of the string to be displayed...

Answer 3

I'm not sure but i think it prints a substring starting from the 6th index(5th in C). So it prints ' world'

Answer 4

But I want to know why ?