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写出以下程序段的输出结果________。struct tt{int x;struct tt y;}p;struct tta[4]={20,a+1,15,a+2,30,a+3,17,a};int i;p=a;for(i=1;i<=4;i++){printf("%-4d",p->x); p=p->y;}

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阅读下列程序，并写出运行结果________。#includestruct data{ int a, b, c; };void func(struct data parm){parm.a=18;parm.b=5;parm.c=parm.a*parm.b;printf("parm.a=%d parm.b=%dparm.c=%d\n",parm.a,parm.b,parm.c);}int main(){struct data arg;arg.a=27;arg.b=3;arg.c=arg.a+arg.b;func(arg);printf("arg.a=%d arg.b=%darg.c=%d\n",arg.a,arg.b,arg.c);return0;}

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