range int in c
---- Data types in C ----
Data Type Memory (bytes) Range Format Specifier
short int 2 -2^15 to 2^15 %hd
unsigned short int 2 0 to 2^16 %hu
unsigned int 4 0 to 2^32 %u
int 4 -2^31 to 2^31 %d
long int 4 -2^31 to 2^31 %ld
unsigned long int 4 0 to 2^32 %lu
long long int 8 -2^63 to 2^63 %lld
unsigned long long int 8 0 to 2^64 %llu
signed char 1 -128 to 127 %c
unsigned char 1 0 to 255 %c
float 4 %f
double 8 %lf
long double 16 %Lf