c++ 3 adet program yardım.

#include <stdio.h> 
  int main() 
  { 
  	int a,b,c,x,y,z; 
   
  	printf("Enter three integers\n"); 
  	scanf("%d%d%d",&a,&b,&c); 
   
  	x=(a+5); 
  	y=(b+5); 
  	z=(c+5); 
   
  	printf("%d\n%d\n%d\n",&x,&y,&z); 
   
  	return 0; 
  }

#include <stdio.h> 
  int main(void) 
  { 
  	int a,b,c,av; 
  	 
  	printf("Enter your school number,midterm grade and final grade\n"); 
  	scanf("%d%d%d",&a,&b,&c); 
   
  	av=(b+c)/2; 
  	printf("%d%f",&a,&av); 
   
  	return 0; 
  }

#include <stdio.h> 
   
  int main() 
   
  { 
  	int pi,radius,diameter,circumference,area; 
   
  	printf("Enter the radius of the circle\n"); 
  	scanf("%d",&radius); 
  	 
  	 
  	pi=3,14; 
  	diameter=radius*2; 
  	circumference=2*pi*radius; 
  	area=pi*radius*radius; 
   
  	scanf("%d%d%d",&diameter,&circumference,&area); 
   
  	return 0; 
   
  } 
   
  

#include <stdio.h> 
  int main () 
   
  { 
  int r; 
  printf("enter the radius\n") 
  scanf("%d",&r); 
  printf("the diameter is %d\n",2*r); 
  printf("the circumference is %f\n",2*r*3.14); 
  printf("The are is %f\n";r*rr3.14); 
  return 0; 
   
  }