40. 다음 C프로그램의 실행 결과는?
#include void change(int *px, int *py, int pc, int pd); void main(void) { int a=10, b=20, c=30, d=40; change(&a, &b, c, d); printf( a=%d b=%d c=%d d=%d , a, b, c, d); } void change(int *px, int *py, int pc, int pd) { *px = *py + pd; *py = pc + pd; pc = *px + pd; pd = *px + *py; }
- 1a=60 b=70 c=50 d=30
- 2a=60 b=70 c=30 d=40
- 3a=10 b=20 c=50 d=30
- 4a=10 b=20 c=30 d=40