题目内容
【填空题】写出下面程序执行后的运行结果____。#include int a1 = 300, a2 = 400;void sub1( int x, int y ); int main(){ int a3 = 100, a4 = 200; sub1( a3, a4 ); sub1( a1, a2 ); printf( "%d,%d,%d,%d", a1, a2, a3, a4 ); return(0);} void sub1( int x, int y ){ a1 = x; x = y; y = a1;}
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