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포인터2

1. Quiz[C Basic] 다음 프로그램을 실행할 경우 출력 결과를 작성하라.(오류가 나면 오류도 함께 작성할 것.) 1.1. #include #define PR(X,Y,Z) printf("X=%d, Y=%d, Z=%d\n", X, Y, Z) int x=1, y=3, z=7; int sum(int *x, int y){ PR(z,*x,y); *x = 4; y = -y; return (*x+y+z); } int main(){ int x=2, z; z=sum(&y, x); PR(x,y,z); z=sum(&x, z); PR(y,z,x); return 0; } 1.2. #include int x = 10; void f( ){ x++; printf("%d, ", x); } void g( ){ static int x = 30; printf(".. 2021. 11. 7.
6. Pointer[C Basic] 6.1. Write program using pointer The function should receive three integer pointer: 1. Increase 1st argument by 1 2. Multiply 2nd argument by 3rd argument 3. Assign the result to 2nd argument 4. Swap 2nd and 3rd argument #include cal(int *a, int *b, int *c) { (*a)++; (*b) *= (*c); int temp = *b; *b = *c; *c = temp; } int main() { int a, b, c; printf("Enter three numbers: "); scanf("%d %d %d", &a.. 2021. 11. 7.
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