Answer / daru

just use Bresenham's algo

d=1-r;
y=r;
x=0;
while(y>x)
{
if(d<0)
d+=2*x+3;
else {
d+=2*(x-y)+5;
y--;
}
x++;
plotpoints(x,y);
}

Answer / vignesh

#include<stdio.h>
#include<graphics.h>
main()
{
int x,y,r;
printf("Enter x,y,r\n");
scanf("%d %d %d",&x,&y,&r);

int g=DETECT,gmode;
initgraphics(&g,&gmode,"");
circle(x,y,r);
closegraphics();
}

main() { clrscr(); } clrscr();

2 Answers  

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program to Reverse a linked list

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{ int *ptr=(int*)malloc(sizeof(int)); *ptr=4; printf("%d",(*ptr)+++*ptr++); }

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int a=1; printf("%d %d %d",a++,a++,a); need o/p in 'c' and what explanation too

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struct Foo { char *pName; char *pAddress; }; main() { struct Foo *obj = malloc(sizeof(struct Foo)); clrscr(); obj->pName = malloc(100); obj->pAddress = malloc(100); strcpy(obj->pName,"Your Name"); strcpy(obj->pAddress, "Your Address"); free(obj); printf("%s", obj->pName); printf("%s", obj->pAddress); } a. Your Name, Your Address b. Your Address, Your Address c. Your Name Your Name d. None of the above

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main() { extern out; printf("%d", out); } int out=100;

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main(int argc, char *argv[]) { (main && argc) ? main(argc-1, NULL) : return 0; } a. Runtime error. b. Compile error. Illegal syntax c. Gets into Infinite loop d. None of the above

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Declare an array of N pointers to functions returning pointers to functions returning pointers to characters?

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write a program in c language to get the value of arroy keys pressed and display the message which arrow key is pressed?

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main() { extern int i; i=20; printf("%d",i); }

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Give a oneline C expression to test whether a number is a power of 2?

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Which version do you prefer of the following two, 1) printf(“%s”,str); // or the more curt one 2) printf(str);

1 Answers  

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