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#include "pch.h"
#include <iostream>
using namespace std;
struct _Point {
double x, y, z;
};
void setPoint(_Point &, double = 0, double = 0, double = 0);
void outPoint(const _Point &, char);
int main()
{
_Point A, B, C, D;
setPoint(A, 1, 5, 6.78);
setPoint(B);
setPoint(C, 8);
setPoint(D, 3, 4);
outPoint(A,'a');
outPoint(B,'b');
outPoint(C,'c');
outPoint(D,'d');
}
void setPoint(_Point &name, double a, double b, double c) {
name.x = a;
name.y = b;
name.z = c;
}
void outPoint(const _Point &name,char ch) {
cout <<ch<< "(" << name.x << ", " << name.y << ", " << name.z << ")\n";
}