下列程序运行时的输出结果是______。 include using namespace std; void Xfun(intvoid Xfun(int, int);int main(){int a=3, b=4;Xfun(a, B) ;cout<<a*a+b<<end1;return 0;}void Xfun(int x, int y){int z=x;x=y; y=z;}

下列程序运行时的输出结果是______。 include using namespace std; void Xfun(int&

下列程序运行时的输出结果是______。

include<iostream>

using namespace std;

void Xfun(int&, int&);

int main(){

int a=3, b=4;

Xfun(a, B) ;

cout<<a*a+b<<end1;

return 0;

}

void Xfun(int& x, int& y){

int z=x;

x=y; y=z;

}


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