#include <stdio.h>
int sum(int x, int y);
int sum(int x, int y, int z);
int sum(int x, int y, int z, int i);
int main()
{
int a, b, c, d;
int r;
a = 10;
b = 20;
c = 30;
d = 40;
r = sum(a,b);
printf("r=%d\n", r);
return 0;
}
int sum(int x, int y)
{
return x+y;
}
int sum(int x, int y, int z)
{
return x+y+z;
}
int sum(int x, int y, int z, int i)
{
return x+y+z+i;
}
#include <stdio.h>
int sum(int x, int y, int z=0, int i=0);
int main()
{
int a, b, c, d;
int r;
a = 10;
b = 20;
c = 30;
d = 40;
r = sum(a,b);
printf("r=%d\n", r);
return 0;
}
int sum(int x, int y, int z, int i)
{
return x+y+z+i;
}