#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()
{
char c1,c2;
c1=97;
c2=98;
printf("c1=%c,c2=%c\n",c1,c2);
printf("c1=%d,c2=%c\n",c1,c2);
return 0;
}
#include<stdio.h>
#include<math.h>
int main()
{
double x,y,z;
scanf("%lf %lf",&x,&y);
z=x+1/sqrt(y*y);
printf("%d",z);
printf("%lf",z);
printf("%e",z);
return 0;
}