[单选题]

以下程序的运行结果是includevoid sub(int x, int y, int * z){* z=y£­x;}void main

以下程序的运行结果是 #include<iostream.h> void sub(int x, int y, int * z) { * z=y-x;} void main( ) { int a,b,c; sub(10,5,&a) ; sub(7,a,&b) ; sub(a,b,&c) ; cout < < a < < "," < < b < < "," < < C < < endl;}

A.5,2,3

B.-5,-12,-7

C.-5,-12,-17

D.5,-2,-7

参考答案与解析:

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以下程序的运行结果是#includevoid sub(int x, int y,