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//下面程序的输出结果是【1】__________。#includeintf(intx,inty){return(y-x);}intmain(){inta=5,b=6,c;int(*g)(int,int)=f;printf("%d\n",(*g)(a,b));return0;}

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//以下程序的运行结果是【1】____________。#includevoidnum(){externintx,y;inta=15,b=10;x=a-b;y=a+b;}intx,y;intmain(){inta=7,b=5;x=a+b;y=a-b;num();printf("%d,%d\n",x,y);return0;}

//以下程序的运行结果是?。#includeintmain(){inti=2,x=5,j=7;voidfun(inti,intj);fun(j,6);//【1】_____________。printf("i=%d;j=%d;x=%d\n",i,j,x);//【2】_____________。return0;}voidfun(inti,intj){intx=7;printf("i=%d;j=%d;x=%d\n",i,j,x);}

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