How to solve the problem of unsigned and signed in C language

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The problem of unsigned and signed in C language

Unsigned char a [5] = {12pr 36 pr 96128182}

The range of a [] is 0,256. All the numbers in the array are valid.

Char a [5] = {12pcr 36pm 96128182}

The range of a [] is-128 to 127. 128 and 182 are invalid in the array.

The problem of addition of unsigned numbers and signed numbers in C language

Take a look at the title:

# include int main () {unsigned int aqui6; int baked Mur20; printf ("% d\ n", aquib); (ahumb) > 6? Puts ("> 6"): puts ("