A. float b[2][2]={0.1,0.2,0.3,0.4}; B. float a[][2]={{0.1,0.2},{0.3,0.4}}; C. int a[][2]={1,2,3}; D. int a[][2]={1,2,3,4};
A. char str[5]="hello"; B. char str[]={'h','e','l','l','o','\0'}; C. char str[5]="hi"; D. char str[100]="";
A. 3 B. 4 C. 5 D. 6
A. 20 B. 15 C. 5 D. 2
ABCDEF BDF C. ABCDE D. BCDE