标签:字符串 它的 wan span 完全 回文字符串 EAP 小兔子 函数
#include "stdio.h"
main()
{int i,j,result;
for (i=1;i<10;i++)
{ for(j=1;j<10;j++)
{
result=i*j;
printf("%d*%d=%-3d",i,j,result);/*-3d表示左对齐,占3位*/
}
printf("\n");/*每一行后换行*/
}
system("pause");
}
?
#include "stdio.h"
main()
{
long f1,f2;
int i;
f1=f2=1;
for(i=1;i<=20;i++)
{ printf("%12ld %12ld",f1,f2);
if(i%2==0) printf("\n");/*控制输出,每行四个*/
f1=f1+f2; /*前两个月加起来赋值给第三个月*/
f2=f1+f2; /*前两个月加起来赋值给第三个月*/
}
system("pause");
}
?
#include "math.h"
main()
{
int m,i,k,h=0,leap=1;
printf("\n");
for(m=101;m<=200;m++)
{ k=sqrt(m);
for(i=2;i<=k;i++)
if(m%i==0)
{leap=0;break;}
if(leap) /*内循环结束后,leap依然为1,则m是素数*/
{printf("%-4d",m);h++;
if(h%10==0)
printf("\n");
}
leap=1;
}
printf("\nThe total is %d",h);
system("pause");
}
?
int main()
{
static int k[10];
int i,j,n,s;
for(j=2;j<1000;j++)
{
n=-1;
s=j;
for(i=1;i<j;i++)
{if((j%i)==0)
{ n++;
s=s-i;
k[n]=i;
}
}
if(s==0)
{
printf("%d is a wanshu: ",j);
for(i=0;i<n;i++)
printf("%d,",k[i]);
printf("%d\n",k[n]);
}
}
system("pause");
}
?
int main()
{
int a[4][4],b[4][4],i,j; /*a 存放原始数组数据, b 存放旋转后数组数据*/
printf("input 16 numbers: ");
/*输入一组数据存放到数组 a 中,然后旋转存放到 b 数组中*/
for(i=0;i<4;i++)
for(j=0;j<4;j++)
{
scanf("%d",&a[i][j]);
b[3-j][i]=a[i][j];
}
printf("array b:\n");
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
printf("%6d",b[i][j]);
printf("\n");
}
system("pause");
}
?
int main()
{
int i,j,a[6][6];
for(i=0;i<=5;i++)
{
a[i][i]=1;a[i][0]=1;
}
for(i=2;i<=5;i++)
for(j=1;j<=i-1;j++)
a[i][j]=a[i-1][j]+a[i-1][j-1];
for(i=0;i<=5;i++)
{
for(j=0;j<=i;j++)
printf("%4d",a[i][j]);
printf("\n");
}
system("pause");
}
?
#include <stdio.h>
#include <stdlib.h>
int main()
{
float a[4][5],sum1,sum2;
int i,j;
for(i=0;i<3;i++)
for(j=0;j<4;j++)
scanf("%f",&a[i][j]);
for(i=0;i<3;i++)
{
sum1=0;
for(j=0;j<4;j++)
sum1+=a[i][j];
a[i][4]=sum1/4;
}
for(j=0;j<5;j++)
{
sum2=0;
for(i=0;i<3;i++)
sum2+=a[i][j];
a[3][j]=sum2/3;
}
for(i=0;i<4;i++)
{
for(j=0;j<5;j++)
printf("%6.2f",a[i][j]);
printf("\n");
}
system("pause");
}
?
#include <string.h>
int main()
{
char c[200],c1;
int i,j,k;
printf("Enter a string: ");
scanf("%s",c);
k=strlen(c);
for (i=0,j=k-1;i<k/2;i++,j--)
{
c1=c[i];c[i]=c[j];c[j]=c1;
}
printf("%s\n",c);
system("pause");
}
#include <stdio.h>
void invert(char *s)
{
int i,j,k;
char t;
k=strlen(s);
for(i=0,j=k-1;i<k/2;i++,j--)
{
t=*(s+i); *(s+i)=*(s+j); *(s+j)=t;
}
}
main()
{
FILE *fp;
char str[200],*p,i,j;
if((fp=fopen("p9_2.out","w"))==NULL)
{
printf("cannot open the file\n");
exit(0);
}
printf("input str:\n");
gets(str);
printf("\n%s",str);
fprintf(fp,"%s",str);
invert(str);
printf("\n%s",str);
fprintf(fp,"\n%s",str);
fclose(fp);
system("pause");
}
?
#include <stdio.h>
int main()
{
char s[80],c;
int j,k;
printf("\nEnter a string: ");
gets(s);
printf("\nEnter a character: ");
c=getchar( );
for(j=k=0;s[j]!= ‘\0‘;j++)
if(s[j]!=c)
s[k++]=s[j];
s[k]= ‘\0‘;
printf("\n%s",s);
system("pause");
}
#include<stdio.h>
void sort(int *x,int n)
{
int i,j,k,t;
for(i=0;i<n-1;i++)
{
k=i;
for(j=i+1;j<n;j++)
if(x[j]>x[k]) k=j;
if(k!=i)
{
t=x[i];
x[i]=x[k];
x[k]=t;
}
}
}
void main()
{
FILE *fp;
int *p,i,a[10];
fp=fopen("p9_1.out","w");
p=a;
printf("Input 10 numbers:");
for(i=0;i<10;i++)
scanf("%d",p++);
p=a;
sort(p,10);
for(;p<a+10;p++)
{
printf("%d ",*p);
fprintf(fp,"%d ",*p);
}
system("pause");
fclose(fp);
}
?
#include <stdio.h>
int main()
{
int a[10]={0,12,17,20,25,28,30}; /*a[0]为工作单元,从 a[1]开始存放数据*/
int x , i, j=6; /*j 为元素个数*/
printf("Enter a number: ");
scanf("%d",&x);
a[0]=x;
i=j; /*从最后一个单元开始*/
while(a[i]>x)
{
a[i+1]=a[i]; i--;
} /*将比 x 大的数往后移动一个位置*/
a[++i]=x;
j++; /*插入 x 后元素总个数增加*/
for(i=1;i<=j;i++) printf("%8d",a[i]);
printf("\n");
system("pause");
}
#include<stdio.h>
replace(char *s,char c1,char c2)
{
while(*s!=‘\0‘)
{ if (*s==c1)
*s=c2;
s++;
}
}
main()
{
FILE *fp;
char str[100],a,b;
if((fp=fopen("p10_2.out","w"))==NULL)
{
printf("cannot open the file\n");
exit(0);
}
printf("Enter a string:\n");
gets(str);
printf("Enter a&&b:\n");
scanf("%c,%c",&a,&b);
printf("%s\n",str);
fprintf(fp,"%s\n",str);
replace(str,a,b);
printf("The new string is----%s\n",str);
fprintf(fp,"The new string is----%s\n",str);
fclose(fp);
system("pause");
}
?
main()
{
char s1[6]="thisis";char s2[5]="is";
printf("%d\n",search(s1,s2));
system("pause");
}
int search(char s1[],char s2[])
{
int i=0,j,len=strlen(s2);
while(s1[i])
{
for(j=0;j<len;j++)
if(s1[i+j]!=s2[j]) break;
if(j>=len)return i;
else i++;
}
return -1;
}
?
struct student
{
int num;
char *name;
char sex;
int age;
}
stu[5]={{1001,"lihua",‘F‘,18},{1002,"liuxing",‘M‘,19},{1003,"huangke",‘F‘,19},{1004,"feng
shou",‘F‘,19},{1005,"Wangming",‘M‘,18}};
main()
{
int i;
struct student *ps;
printf("Num \tName\t\t\tSex\tAge\t\n");
/*用指针变量输出结构体数组元素。 */
for(ps=stu;ps<stu+5;ps++)
printf("%d\t%-10s\t\t%c\t%d\t\n",ps->num,ps->name,ps->sex,ps->age);
/*用数组下标法输出结构体数组元素学号和年龄。 */
for(i=0;i<5;i++)
printf("%d\t%d\t\n",stu[i].num,stu[i].age);
system("pause");
}
?
#define NULL 0
struct student
{
int num;
char *name;
int age ;
struct student *next;
};
void main()
{
struct student a,b,c,*head,*p;
a.num=1001; a.name="lihua"; a.age=18; /* 对结点成员进行赋值 */
b.num=1002; b.name="liuxing"; b.age=19;
c.num=1003; c.name="huangke"; c.age=18;
head=&a; /* 建立链表, a 为头结点 */
a.next=&b;
b.next=&c;
c.next=NULL;
p=head; /* 输出链表 */
do{
printf("%5d,%s,%3d\n",p->num,p->name,p->age);
p=p->next;
}while(p!=NULL);
system("pause");
}
?
#include <stdio.h>
#include <string.h>
#include<string.h>
main()
{
char s[100];
int i,j,n;
printf("输入字符串: \n");
gets(s);
n=strlen(s);
for(i=0,j=n-1;i<j;i++,j--)
if(s[i]!=s[j])
break;
if(i>=j)
printf("是回文串\n");
else
printf("不是回文串\n");
system("pause");
}
?
#include<stdio.h>
void fun(int a[],int n)
{
int i,j,t;
for(i=0;i<=n-1;i++)
for(j=0;j<i;j++)
if(a[j]>a[j+1])
{
t=a[j];a[j]=a[j+1];a[j+1]=t;
}
}
main()
{
int a[10]={12,45,7,8,96,4,10,48,2,46},n=10,i;
FILE *f;
if((f=fopen("myf2.out","w"))==NULL)
printf("open file myf2.out failed!\n");
fun(a,10);
for(i=0;i<10;i++)
{
printf("%4d",a[i]);
fprintf(f,"%4d",a[i]);
}
fclose(f);
system("pause");
}
?
#include<stdio.h>
double countpi(double eps) /*eps 为允许误差*/
{
int m=1;
double temp=1.0,s=0;
while(temp>=eps)
{
s+=temp;
temp=temp*m/(2*m+1);
m++;
}
return(2*s);
}
main()
{
FILE *fp;
double eps=1e-5,pi;
if((fp=fopen("p7_3.out","w"))==NULL)
{
printf("cannot open the file\n");
exit(0);
}
pi= countpi(eps);
printf("pi=%lf\n",pi);
fprintf(fp,"pi=%lf\n",pi);
fclose(fp);
system("pause");
}
标签:字符串 它的 wan span 完全 回文字符串 EAP 小兔子 函数
原文地址:https://www.cnblogs.com/linxw-blog/p/12664939.html