标准C语言程序设计及应用——华中科技大学出版社第三章课后题.docx

华中科技大学光电0904 U200914163 LZ1. 比大小 #includemain()int a,b;int max;printf(Please enter 2 numbers:n);scanf(%d%d,&a,&b);max=ab?a:b;printf(The bigger one is %d,max);2. 三个整数比大小#includemain()int a,b,c;int max,mid;printf(Please enter 3 numbers:n);scanf(%d%d%d,&a,&b,&c);mid=ab?a:b;max=midc?mid:c;printf(The biggest one is %d,max);3. 累加#includemain()int i;int sum=0;for(i=1;i101;i+)sum+=i;printf(The answer is %d,sum);4. 计算通项公式中的每一项#includemain()int an_2=10,an_1=-3;int an;int i,n;printf(请输入需要的项的个数：n);scanf(%d,&n);printf(第1项：10n);printf(第2项：-3n); if(n=2)printf(Error!);elsefor(i=3;i=n;i+)an=3*an_1+an_2;an_2=an_1;an_1=an;printf(第%d项：t%dn,i,an);5. 判断奇偶数：#includemain()int a;printf(Please enter a number:n);scanf(%d,&a);if(a%2=0)printf(%d is an Even number!,a); elseprintf(%d is an Odd number!,a);6. 求前n项和#includemain()int an=8,bn=1,sum=0;int n;int i;printf(请输入你需要多少项的和：n);scanf(%d,&n);for(i=1;i=n;i+)printf(第%d项是%dn,i,an);sum+=an;bn+=3;an+=bn; printf(n前%d项的和为%d,n,sum);7. 求分段函数的解：#includemain()float x,y;printf(Please enter a number:n);scanf(%f,&x);if(x=1)&(x10)y=2*x-1;elsey=3*x-11;printf(y=%.2f,y);8.给出一个不多于5位的数，求出其位数，并逆序打印：#includemain()int in,out,n;int wei=1;int a,b,c,d,e;int i;printf(Please enter a number:n);scanf(%d,&in);n=in; if(a99999) for(i=0;i0)wei+;printf(The number has %d digitn,wei);e=in%10;switch(wei)case 1:out=in;break;case 2:out=10*e+in/10;break;case 3:c=in/100;b=(in-c*100)/10;out=100*e+10*b+c;break;case 4:b=in/1000;c=(in-b*1000)/100;d=(in-b*1000-c*100)/10;out=1000*e+100*d+10*c+b;break;case 5:a=in/10000;b=(in-a*10000)/1000;c=(in-a*10000-b*1000)/100;d=(in-a*10000-b*1000-c*100)/10;out=10000*e+1000*d+100*c+10*b+a;break; if(wei6) printf(%d in reverse order is %dn,in,out); else printf(Error!); 9.产生随机数并猜测#include#include#include main()int a,answer;int i;srand(unsigned)time(NULL); a= rand()%100;for(i=0;ia)printf(Bigger!n);else if(answera)printf(Smaller!n);else printf(You are right!); continue;10.计算能被3整除的数：#includemain()int i;for(i=1;i1000;i+)if(i%3=0)printf(%dt,i);if(i%15=0)printf(能被3和5同时整除的数有：%dn,i);11:输入两个整数，求出它们的最大公约数和最小公倍数#includemain()int a,b;int i;int min,max;printf(Please enter 2 numbers:n);scanf(%d%d,&a,&b);for(i=a0;i-)if(a%i=0)&(b%i=0)max=i;printf(The Greatest common divisor is %dn,max);break;for(i=ab?a:b;ia*b;i+)if(i%a=0)&(i%b=0)min=i;printf(The least common multiple number is %dn,min);break;12输入一个整数，求出它包含多少个2的因子#includemain()int a;int count=0;int i;printf(Please enter a number:n);scanf(%d,&a);for(i=1;i=a;i+)if(a%2=0)count+;a=a/2;printf(The number have %d 2,count);13.计算阶乘#includemain()int i;int j;long int t=1;printf(1n);for(i=1;i10;i+)t*=i+1;printf(%dn,t);14.猴子吃桃问题#includemain()int a=1;int aday;int i,j;for(i=1;i10;i+)a=(a+1)*2;printf(There sum is %dn,a);for(j=1;j10;j+)aday=a/2+1;a-=aday;printf(%dn,a);15圆锥体积计算#include#define PI 3.141592654main()float r,h,v;printf(Please enter 2 numbers:n);scanf(%f%f,&r,&h);if(r0)&(h0)v=1/(3*PI*r*r*h);printf(The Volume is %.6f,v);elseprintf(Error!);16求s=a+aa+aaa+aaaa（n个a）#includemain()int a,n;int i;long int sum=0;printf(Please enter 2 numbers:n);scanf(%d%d,&a,&n);int m=a;for(i=0;in;i+)sum+=a;a=a*10+m;printf(%dt%dn,a,sum);printf(The answer is %ld,sum);17根据数字输出对应星期#includemain()int a;printf(Please enter a number:n);scanf(%d,&a);if(a=0)&(a=6)switch(a)case 0:printf(Sunday);break;case 1:printf(Monday);break;case 2:printf(Tuesday);break;case 3:printf(Wedsday);break;case 4:printf(Thursday);break;case 5:printf(Friday);break;case 6:printf(Saturday);break;elseprintf(Error!);18.计算幂函数的泰勒展开式：ex=1+x+x2/2!#includemain()int i;float n=1;float m;float s=1;printf(Please enter a number:n);scanf(%f,&m);float a=m;for(i=1;m/n1e-6;i+)s+=m/n;m*=a;n*=(i+1);printf(e%.0f=%.6fn,a,s);19.用迭代法求平