variables are character or string in which we store our data.Data types:there are many types of data types like int, float, double, char, long,unsigned.
SOME BASIC DATA TYPES
SOME BASIC DATA TYPES
Data types use in printf Range
char %c -128 to 127
int %d -32768 to +32767
long int %ld -2147483648 to +2147483648
unsigned int %u 0 to 65535
double %lf -1.7e38 to +1.7e38
float %f -3.4e38 to +3.4e38