历年全国计算机等级考试二级C语言笔试（含参考答案）（2006--2011）

b);\rmain()\r{doublex,y,(*p)();\rscanf("%lf%lf",&x,&y);\rp=avg;\rprintf("%f\n",(*p)(x,y));\r)\rdoubleavg(doublea,doubleb)\r{return((a+b)/2);}\r(13)?eFf?"gh56%[13]13715-\r#include\rmain()\r{inti,n[5]={0};\rfor(i=1;i<=4;i++)\r{n[i]==n[i-1]*2+1;printf("%d",n[i]);}\rprintf("\n");\r149EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r)\r(14)?eFf?"gh56%)14Nemoclew-\rinclude\rinclude\rinclude\rmain()\r{char*p;inti;\rp=(char*)malloc(sizeof(char)*20);\rstrcpy(p,''welcome*');\rfor(i=6;i>=0;i-)putchar(*(p+i));\rprintf(H\n-H);free(p);\r)\r(15)?eFf?"gh56%[15]123456-\r#include\rmain()\r{FILE*fp;intx[6]={1,2,3,4,5,6},i;\rfp=fopen("test.datn,"wbH);\rfwrite(x,sizeof(int),3,fp);\rrewind(fp);\rfread(x,sizeof(int),3,fp);\rfor(i=0;i<6;i++)printf(H%d",x[i]);\rprintf(H\nM);\rfclose(fp);\r)\r150