Programming 01

馃煝聽諑铡謤摘崭謧诈盏崭謧斩 12

曰諡斩展 寨蘸湛站斋 乍寨謤铡斩斋斩謮
#include <iostream>
void swap(int *a, int* b) {
   int tmp = *a;
   *a = *b;
   *b = tmp;
}
int main() {
  int a = 10;
  int b = 20;
  swap(a, b);
  std::cout << a << " " << b;
}
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