Can you explain each parts of this code and correct where necessary?

code: #include #include int Binary 2 Hex (std string Binary) std: bitset set(Binary): int hex = set.to-ulong(); return hex float getfloat 32(std:string Binary) int HexNumber Binary2 Hex (Binary) I negative HexNumber & 0x80000000); int exponet (Hexnumber &0x71800000)>23 int sign negative-:1; exponent127; total 1.0 float value = sign (float)pow(2.0, exponent)" total; return value std: string GetBinary 32(floatvalue) union float input; int output data; data.input = value ; int main (O sid :: string str GetBinary32 (float ) 19.5; std:: cout