"%ld"

Question

why the format specifier is %ld

printf("int: %ld \n", sizeof(int));
printf("float: %ld \n", sizeof(float));
printf("double: %ld \n", sizeof(double));
printf("char: %ld \n", sizeof(char));

Answer 1

ld stands for long decimal

Answer 2

Refer to this:

http://www.cplusplus.com/reference/cstdio/printf/