暑假作业c语言41-50
作者：互联网
#include<stdio.h>
int fn(int a,int n)
{
int s;
while(n>=0)
{
s=a*n+s;
a=a*10;
n--;
}
return s;
}
main()
{
int a1,n1,i;
scanf("%d%d",&a1,&n1);
printf("%d",fn(a1,n1));
}
#include<stdio.h>
int main()
{
void sort(int a[],int n);
int i,a[10];
printf("please input the original array:");
for(i=0;i<10;i++)
scanf("%d",&a[i]);
sort(a,10);
for(i=0;i<10;i++)
printf("%5d",a[i]);
printf("\n");
return 0;
}
void sort(int a[],int n)
{
int min,i,j,t;
for(i=0;i<n-1;i++)
{
min=i;
for(j=i+1;j<n;j++)
if(a[min]>a[j])
min=j;
t=a[i];a[i]=a[min];a[min]=t;
}
}
#include <stdio.h>
#include <math.h>
#define S ((a+b+c)/2)
#define AREA sqrt(S*(S-a)*(S-b)*(S-c))
int main()
{
double a,b,c;
scanf("%lf %lf %lf",&a,&b,&c);
printf("%.3lf",AREA);
return 0;
}
#include<stdio.h>
#define swap(a,b) t=a;a=b;b=t;
int main()
{
int x,y,t;
scanf("%d%d",&x,&y);
swap(x,y);
printf("%d %d",x,y);
return 0;
}
#include<stdio.h>
int digit(int n,int k)
{
int i,a,count=0,copy_n;
copy_n=n;
while(copy_n!=0)
{
copy_n/=10;
count++;
}
if(k>count)
{
return -1;
}
else{
for(i=1;i<=k;i++)
{
a=n%10;
n/=10;
}
return a;
}
}
int main()
{
int n,k;
scanf("%d %d",&n,&k);
if(digit(n,k)==-1)
printf("k大于数字位数!");
else
printf("正整数%d中的第%d位数字为:%d",n,k,digit(n,k));
return 0;
}
#include <stdio.h>
#include <math.h>
#include <string.h>
int main( )
{
char a[10];
void convert(char a[]);
printf("请输入十六进制数:");
gets(a);
convert(a);
return 0;
}
void convert(char a[])
{
int n,i,num=0;
n=strlen(a);
for(i=n-1;i>=0;i--)
{
if(a[i]>='0'&&a[i]<='9')
num+=(a[i]-'0')*pow(16,n-1-i);
else if(a[i]>='A'&&a[i]<='F')
num+=(10+(a[i]-'A'))*pow(16,n-1-i);
else if(a[i]>='a'&&a[i]<='f')
num+=(10+(a[i]-'a'))*pow(16,n-1-i);
}
printf("转换十进制为:");
printf("%d",num);
}
#include<stdio.h>
int main()
{
int a[16][16],i=0,j=0,k=0,p=0,n=0;
p=1;
while(p==1)
{
printf("请输入n（0<n<=15，n是奇数）：\n");
scanf("%d",&n);
if ((n>=0) && (n<=15) && (n%2!=0))
p=0;
}
printf("矩阵阶数是：%d\n",n);
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
a[i][j]=0;
}
j=n/2+1;
a[1][j]=1;
for(k=2;k<=n*n;k++)
{
i=i-1;
j=j+1;
if((i<1)&&(j>n))
{
i=i+2;
j=j-1;
}
else
{
if(i<1)
i=n;
if(j>n)
j=1;
}
if(a[i][j]==0)
{
a[i][j]=k;
}
else
{
i=i+2;
j=j-1;
a[i][j]=k;
}
}
for (i=1;i<=n;i++)
{
int sum=0;
for (j=1;j<=n;j++)
{
printf("%3d",a[i][j]);
sum+=a[i][j];
}
printf("\n");
}
printf("\n\n");
return 0;
}
#include<stdio.h>
#include<string.h>
typedef struct _ballot
{
char name[8];
int vote;
}ballot;
void input(ballot can[4]);
void output(ballot can[4]);
int main()
{
ballot candidate[4]={{"zhao",0},{"qian",0},{"sun",0},{"li",0}};
input(candidate);
output(candidate);
return 0;
}
void input(ballot can[4])
{
int i,j;
char name[8];
printf("input candidators name:\n");
for(i=0;i<20;i++)
{
gets(name);
for(j=0;j<4;j++)
{
if(strcmp(name,can[j].name)==0)
{
can[j].vote++;
}
}
}
}
void output(ballot can[4])
{
int i;
printf("name \tzhao\tqian\tsun\tli\n");
printf("tickets\t");
for(i=0;i<4;i++)
{
printf("%d\t",can[i].vote);
}
printf("\n");
}
#include"stdio.h"
#define N 1
struct student
{
char StuID[15];
char Name[10];
float Grade[3];
}stu[N];
float Average(struct student stu, int n)
float Average(int n)
int main()
{
int i,j;
printf("请输入学生的ID、名字:\n");
for (i=0;i<N;i++)
{
scanf("%s %s", &stu[i].StuID, &stu[i].Name);
printf("请输入三门课的成绩:");
for (j=0;j<3;j++)
{
scanf("%f", &stu[i].Grade[j]);
}
}
for (i=0;i<N;i++)
{
printf("%s %s %f\n",stu[i].StuID,stu[i].Name,Average(3));
}
return 0;
}
float Average(int n)
{
int i,j;
float sum=0;
for (i=0;i<N;i++)
{
for (j=0;j<n;j++)
{
sum=sum+stu[i].Grade[j];
}
}
return sum/n;
}
#include<stdio.h>
struct student
{
int num;
float score;
struct student *next;
};
int main()
{
struct student a,b,c;
struct student *head,*point;
a.num=10101;
a.score=89.5;
b.num=10103;
b.score=90.0;
c.num=10107;
c.score=85.0;
head=&a;
a.next=&b;
b.next=&c;
c.next=NULL;
point=head;
do
{
printf("%ld %5.1f\n",point->num,point->score);
point=point->next;
}
while(point!=NULL);
return 0;
}
标签：main,return,int,50,41,stu,printf,include,暑假作业 来源： https://blog.csdn.net/m0_54632847/article/details/119379084