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2022-08-06 03:21:35CSDN Q&A

12345678910
c++

#include
using namespace std;
void change(int &a,int &b){
int c;
c=a;
a=b;
b=c;
}
int main(){
int a,b;
cin>>a>>b;
change(a,b);
cout<" "
}
Hello

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