c语音程序题目答案课件.ppt

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1、1．编写程序，找出大于正整数m且靠近m的k个素数，m和k都从键盘输入。例如：输入205，输出大于20并靠近20的的5个素数为：2329313741。#includevoidmain(){intm,k,y,i=2,z=0;printf("enternumbermandk:");scanf("%d%d",&m,&k);for(y=m+1;z=y){printf("%d",y);z++;}}}2．找出2-100之间的所有素数，并按每行10

2、个数输出。#includevoidmain(){intj=0,i,x;for(i=2;i<=100;i++){for(x=2;x=i){printf("%3d",i);j++;}if(j%10==0)printf("");}}3．从键盘输入4个整数，按照由大到小的顺序输出。#includevoidmain(){intn,i,j,k,x,max,a[100];printf("qingshuruyouduoshaogeshuyaopailie:")

3、;scanf("%d",&n);printf("qingshuruzhexieshu:");for(i=0;imax){max=a[j];k=j;}x=a[k];a[k]=a[i];a[i]=x;}printf("paixushi:");for(i=0;i

4、种方法输出图形：数组保存图形，再用循环输出。#includevoidmain(){chara[][5]={{'*'},{'*','*'},{'*','*','*'},{'*','*','*','*'},{'*','*','*','*','*'}};inti,j;for(i=0;i<5;i++){for(j=0;j<5;j++)printf("%c",a[i][j]);printf("");}}5．输入一个整数n，计算1-1/3+1/5-1/7+1/9…的前n项和。#includevoidmain()

5、{intn;floati=0.0,s,j=1,t=1;printf("n=");scanf("%d",&n);while(tvoidmain(){inta,n,i,j=0,s=0;printf("aandn:");scanf("%1d%d",&a,&n

6、);for(i=0;ivoidmain(){intn;doubles=100.0,h=s/2;for(n=2;n<=10;n++){s=s+2*h;h=h/2;}printf("lucheng=%f",s);printf("gaodu=%f",h);}8．输入一个整数，从高位开始

7、逐个数字输出。#includevoidmain(){intb[100];inti=0,n,a=0;printf("enteranumber:");scanf("%d",&n);if(n<0)n=-n;while(n!=0){a=n%10;n=n/10;b[i]=a;i++;}for(i=i-1;i>=0;i--)printf("%d",b[i]);}9．输入一个正整数n，再输入n个整数，输出最小值。#includevoidmain(){intn,a[100],i=0,j,min,k,x;printf

8、("enteranumber:");scanf("%d",&n);printf("enteranumber:");for(i=0;i