#include<stdio.h>
int main()
{
char c1,c2;
c1=97;
c2=98;
printf("c1=%c,c2=%c\n",c1,c2);
printf("c1=%d,c2=%d\n",c1,c2);
return 0;
}
#include<stdio.h>
int main()
{
int a,b,sum;
a=123;
b=456;
sum=a+b;
printf("sum is %d\n",sum);
return 0;
}#include<stdio.h>
int main()
{
#include<stdio.h>
int main()
{
int z1;
double x,y,z2,z3;
scanf("%lf%lf",&x,&y);
if(y>=0)
y=1/y;
else
y=-1/y;
z1=x+y;
z2=x+y;
z3=x+y;
printf("%d\n",z1);
printf("%15.6f\n",z2);
printf("%e\n",z3);
}