firmado y sin firmar en c
// valid codes
//In C, signed and unsigned are type modifiers. You can alter the data storage of a data type by using them:
//signed - allows for storage of both positive and negative numbers
//unsigned - allows for storage of only positive numbers
unsigned int x = 35;
int y = -35; // signed int
int z = 36; // signed int
// invalid code: unsigned int cannot hold negative integers
unsigned int num = -35;
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