midpoint programming

[Merve Güler]

where is my mistake ? and i wanna put while loop for x1,y1 x2,y2 where can i put
thanks

#include<stdio.h>int main(){


	float midpoint;
	int x1,y1,x2,y2;


	printf("enter first point x1,y1 ");
	fflush(stdout);
	scanf("%d %d ",&x1,&y1);


	printf("enter second point x2,y2");
	fflush(stdout);
	scanf("%d %d ",&x2,&y2);


	midpoint=(x1+x2)/2,(y1+y2)/2;


	printf("midpoint is %f %f",midpoint);
    fflush(stdout);
    scanf("%f",&midpoint);


return 0;
}

[Matticus]

where is my mistake ?

Perhaps you can elaborate on what the program is not doing that you expect it to do.

Heed the warnings from your compiler.

main.c||In function 'main':|
main.c|18|warning: value computed is not used|
main.c|21|warning: too few arguments for format|
||=== Build finished: 0 errors, 2 warnings ===|

Line 18 does not do what you think it does. You can only assign one value to a single variable. Perhaps you should start by finding the midpoint for x and y separately (i.e. separate variables).

The same goes for line 21. If you want to print two values, you should be using two variables.

and i wanna put while loop for x1,y1 x2,y2 where can i put

What exactly do you want your program to repeat? Whatever that might be, put those lines of code within a loop. Give it a shot and let us know if you encounter any difficulties.

[Merve Güler]

thanks i understood my mistakes i wanna put while loop because in my homework there are a lot of points whatever