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 #include <iostream>
#include <cstdio>
using namespace std;
template <typename T1 , typename T2>
  T2 fun(T1 x,T2 y) {
 T2 tmp = x *x + y * y + x * y;
return tmp;
 }
int main(){
int x1 = 1, y1 = 4;
float x2 = 1.1 , y2 = 2.2;
double x3 = 2.0 , y3 = 3.1;
cout << fun(x1, y1) << endl;
cout << fun(x2, y2) << endl;
cout << fun(x3, y3) << endl;
cout << fun(x1, y2) << endl;
return 0;
}
1#include <iostream>
2#include <cstdio>
3using namespace std;
4
5template <typename T>
6T fun(T x,T y){
7 T tmp = x *x + y * y + x * y;
8 return tmp;
9}
10int main(){
11 int x1 = 1,y1 = 4;
12 float x2 = 1.1 , y2 = 2.2;
13 double x3 = 2.0 , y3 = 3.1;
14 cout << fun(x1, y1) << endl;
15 //cout << fun(x1, y2) << endl;
16 cout << fun(x2, y2) << endl;
17 cout << fun(x3, y3) <<endl;
18 return 0;
19}
20
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