宁波大学《vc++6.0环境的高级语言程序设计C》参考答案(从实验三开始 实验二的答案出错了).docVIP

宁波大学《vc++6.0环境的高级语言程序设计C》参考答案#includestdio.h#includemath.hvoid main(){?float x,y;?printf(输入x(-5x10):\n);?scanf(%f,x);?if(-5xx0) y=x;?else if(x=0) y=x-1;??? ? else y=x+1;?printf(y=%f\n,y);} #includestdio.h#includemath.hvoid main(){float x,y;printf(输入x\n);scanf(%f,x); if(x=0) ? y=sqrt(x);else ? y=pow((x+1),2)+2*x+1/x;printf(y=%.2f,y);} 3.2 #includestdio.h#includemath.hvoid main(){?double x,y;?printf(输入x(-5x10):\n);?scanf(%lf,x);?if((x0)x10)? y=x+1;?else if(0==x) ? y=x-1;?else if((x-5)(x0))? y=x;printf(y=%f\n,y);}#includestdio.h main() { ?int i=1; ?int sum=0; ?while(i=1000) ?{ sum=sum+i; ?i=i+2; ?} ?printf(sum=%d\n,sum); } #includestdio.h main() { ?int i=1; ?int sum=0; ?do ?{ sum=sum+i; ?i=i+2; ?} while(i=1000); ?printf(sum=%d\n,sum); } #includestdio.h void main() { ?int i=1; ?int sum=0; ?for(i=1;i=1000;i=i+2) ?{ ??sum=sum+i; ?} ?printf(sum=%d\n,sum); } 4.2 #includestdio.h #includemath.h void main() { ?float i=1,x=1,sum=0,n; ?printf(请输入n\n); ?scanf(%f,n); ?while(x=n) ?{ sum=sum+1/i; ???i=i+2; ???x=x+1; ?} ?printf(sum=%.6f\n,sum); } 4.3 #include stdio.h#include math.hvoid main(){ ? int a,n,i;?long sum=0;?printf(Please input a(0a=9) and n:);?scanf(%d%d,a,n);?if(a9||a=0)?{ ?printf(a is not in (1,2,3,4,5,6,7,8,9)!\nplease input a again:);?scanf(%d,a);?}?for(i=1;i=n;i++)?? ? {? sum+=(pow(10,i)-1)*a/9.0;? }?printf(sum=%ld,sum);} 5.1 #includestdio.hint f1(int a){int result;result=a*a*a;return result;}int f2(int x,int y){int ans;ans=x+y;return ans;} void main(){?int i=1;?int sum; ? for(sum=0;i=5;i++)? {sum=f2(sum,f1(i));}? printf(sum=%d\n,sum);} 5.2 #includestdio.hint factor(int m){ ? int factor;??? ? int a,sum=0;? for(a=1;am;a++)? {? ? if(m%a==0)? sum=sum+a;? }?return ?(sum==m);}void main(){?int m;?for(m=2;m=10000;m++)?{if(factor(m)==0)?continue;?printf(%d\t,m);?} } 99乘法表打印程序#includestdio.hvoid main(){ ?int i,j;for(i=1;i=9;i++){?for(j=1;j=i;j++)?{? printf(%d*%d=%d ,i,j,i*j);?}