22 lines
301 B
C++
22 lines
301 B
C++
#include<iostream>
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using namespace std;
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void swap(int & a, int & b);
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int main(int argc, char const *argv[])
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{
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int x1(5);
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int x2(7);
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swap(x1,x2);
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cout<<x1<<" "<<x2<<endl;
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system("pause");
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return 0;
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}
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void swap(int & a, int & b)
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{
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int t;
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t = a;
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a = b;
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b = t;
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}
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