Which of the following array definitions are valid in $C++?$

int num$[10]=\{0,0,1,0,0,1,0,0,1,1\}$;

int matrix $[5]=\{1,2,3,-4,-5,6,-7\}$;

double radiii $[10]=\{3\mathrm{.}2,4\mathrm{.}7,5\}$;

int set$[7]=\{2,27,45,39\}$;

char code$[$