5.5 lude<stdio. h> nain( scanf("%f, &x) if(x<10) i if(x<1) y-x, y printf("%f\n"y) fint x, y: scanf("%d", &x) 10 switch(y) case 9: printf("An"); break case 8: printf("B\n"); break case 7: printf("C\n"); break case 6: printf("Dn"), break default: printf ("EIn"); break5.5 #include<stdio.h> void main() { float x,y; scanf("%f",&x); if(x<10) { if(x<1) y=x; else y=2*x-1; } else y=3*x-11; printf("%f\n",y); } 5.6 #include<stdio.h> void main() {int x,y; scanf("%d",&x); y=x/10; switch(y) { case 10 : case 9:printf("A\n");break; case 8:printf("B\n");break; case 7:printf("C\n");break; case 6:printf("D\n");break; default:printf ("E\n");break; } }