:S after i tried to compile, i got some errors :S

10 C:\Dev-Cpp\Freq\Freq.c `new' undeclared (first use in this function) 
10 C:\Dev-Cpp\Freq\Freq.c syntax error before "int" 
40 C:\Dev-Cpp\Freq\Freq.c `delete' undeclared (first use in this function) 
40 C:\Dev-Cpp\Freq\Freq.c syntax error before ']' token