c语言部分答案.doc

第三章七题：#includeint main()double r,h,p=3.14,a,b,c,d,e;scanf(%lf%lf,&r,&h);a=2*p*r;b=p*r*r;c=4/3*p*r*r*r;d=4*p*r*r;e=b*h;printf(圆周长：%8.2lfn圆面积：%8.2lfn圆球表面积：%8.2lfn圆球体积：%8.2lfn圆柱体积：%8.2lfn,a,b,c,d,e);return 0; 第四章8题：#includeint main()int a,b;char c;scanf(%d,&a);while(a100)printf(输入有误，请重输入：);scanf(%d,&a);b=a/10;switch(b)case 10:case 9: c=A;break;case 8: c=B;break;case 7: c=C;break;case 6: c=D;break;case 5:case 4:case 3:case 2:case 1:case 0: c=E;break;printf(%cn,c);return 0; 注意用switch语句时，括号内必须是整数类型（字符型）第四章10题#includeint main()float a1=0.1,a2=0.075,a3=0.05,a4=0.03,a5=0.015,p,s,s1,s2,s3,s4,s5;int n;s1=100000*a1;s2=s1+100000*a2;s3=s2+200000*a3;s4=s3+200000*a4;s5=s4+400000*a5;scanf(%f,&s); n=s/100000;if(n10)p=s5+(s-1000000)*a1;switch(n)case 0:p=s*a1;break;case 1:p=(s-100000)*a2+s1;break;case 2:case 3:p=(s-200000)*a3+s2;break;case 4:case 5:p=(s-400000)*a4+s3;break;case 6:case 7:case 8:case 9:case 10:p=(s-600000)*a5+a4;break;printf(%8.2f,p);return 0;第五章5题#include#define A 2int main()int n,i;double sum=0,term=0;scanf(%d,&n);for(i=1;i=n;i+)term=10*term+A;sum=term+sum;printf(%.2lf,sum);return 0;第五章13题#include#includeint main()float a,x0,x1;scanf(%f,&a);x0=a/2;x1=(x0+a/x0)/2;while(fabs(x0-x1)=1e-5)x0=x1;x1=(x0+a/x0)/2;printf(%8.5fn,x1);return 0;第六章9题#include#define N 15void main()int i,n,t,b,m,l,aN,f=1,s;char c;scanf(%d,&a0);i=1;while(iai-1)i+;elseprintf(输入有误重输入:);printf(n);for(i=0;iN;i+)printf(%d,ai);while(f)scanf(%d,&n);s=0;t=0;b=N-1;if(naN-1)l=-1;while(!s)&(t=b)m=(b+t)/2;if(n=am)l=m;printf(%d%d,n,l+1);s=1;else if(nam)b=m-1;elset=m+1;if(!s|l=-1)printf(%d,n);scanf(%c,&c);if(c=N|c=n)f=0;14题#includeint main()int i,s;char s1100,s2100;gets(s1);gets(s2);i=0;while(s1i=s2i)&(s1i!=0)i+;if(s1i=0&s2i=0)s=0;elses=s1i-s2i;printf(%d,s);第七章4题#include#define N 3int aNN;void main()void h(int a3);int i,j;for(i=0;iN;i+)for(j=0;jN;j+)scanf(%d,&aij);printf(n);for(i=0;iN;i+)for(j=0;jN;j+)printf(%5d,aij);printf(n);h(a);for(i=0;iN;i+)for(j=0;jN;j+) printf(%5d,aij);printf(n);void h(int a3)int i,j,t; for(i=0;iN;i+) for(j=i+1;jN;j+) t=aij; aij=aji; aji=t; 第七章18题#includevoid main()int s(int,int);int l(int year);int year,month,day,days;scanf(%d%d%d,&year,&month,&day);days=s(month,day);if(l(year)&month=3)days=days+1;printf(%dn,days);int s(int month,int day)int d13=0,31,28,31,30,31,30,31,31,30,31,30,31;int i;for(i=1;imonth;i+)day+=di;return(day);int l(int year)int l;l=year%4=0&year%100!=0|year%400=0;return(l);第八章4题#includeint main()void b(int 20,int,int);int a20,n,m,i;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&ai);scanf(%d,&m);b(a,n,m);for(i=0;ic;p-)*p=*(p-1);*c=e;m-;if(m0)b(c,n,m);第八章12题#include#includevoid main()void h(char *);int i;char *p10,str1020;for(i=0;i10;i+)pi=stri;for(i=0;i10;i+)scanf(%s,pi);h(p);for(i=0;i10;i+)printf(%sn,pi);void h(char *s)int i,j;char *t;for(i=0;i9;i+)for(j=0;j0)t=*(s+j);*(s+j)=*(s+j+1);*(s+j+1)=*t;第九章1题#includestructint year;int month;int day;date;void main()int i,days;int day13=0,31,28,31,30,31,30,31,31,30,31,30,31;scanf(%d%d%d,&date.year,&date.month,&date.day);days=0;for(i=1;i=3)days=days+1;printf(%d/%d is the %dth day in %d .n,date.month,date.day,days,date.year);附加题1#includeint main()int N,M,K,i;int a,j=0;scanf(%d%d%d,&N,&M,&K); for(i=N;iM;i+)if(a=i%K)!=0)j+;printf(%d ,i);if(j%5=0)printf(n);附加题2#includeint main()char a77=#,#,#,#, ,#,#,#, , ,#,#, , , ,#, , , , ,#,#, , , , ,#,#,#, , , , ,#,#,#,#;int i,j;for(i=0;i7;i+)for(j=0;j7;j+)printf(%c,aij);printf(n);return 0;附加题3#include#includevoid main()int a(char);int l(char);int i;char b100;gets(b);for(i=l(b);a(bi);i+)printf(%