以下程序都是在VS软件下进行编译的,如果要用VC编译器,删除system(“paues”);即可
9.1
//No.1不用递归
#include<stdio.h>
#define N 20
void selection_sort(int k, int c[]);
int main(int argc,char *argv[])
{
int a[N];
int n;
printf("Enter total of numbers:");
scanf("%d", &n);
printf("Enter numbers:");
int i;
for (i = 0; i < n; i++)
{
scanf("%d", &a[i]);
}
selection_sort(n, a);
for (i = 0; i < n; i++)
{
printf("%d ", a[i]);
}
puts("");
system("pause");
return 0;
}
void selection_sort(int m, int b[])
{
int j, i;
int tmp;;
for (j = 0; j < m; j++)
{
for (i = j+1; i < m; i++)
{
if (b[j] >= b[i])
{
tmp = b[j];
b[j] = b[i];
b[i] = tmp;
}
}
}
}
#include<stdio.h>
#define N 20
void sort(int a,int p[]);
int main()
{
int num[N];
int i,n;
printf("Enter total of numbers:");
scanf("%d",&n);
printf("Enter numbers:");
for(i=0;i<n;i++)
{
scanf("%d",&num[i]);
}
printf("The sort number is:");
sort(n,num);
for(i=0;i<n;i++)
{
printf("%d ",num[i]);
}
puts("");
return 0;
}
void sort(int a,int p[])
{
int i;
int m=p[0];
int j=0;
for(i=0;i<a;i++)
{
if(m<=p[i])
{
m=p[i];
j=i;
}
}
p[j]=p[a-1];
p[a-1]=m;
if(a==0)return;
sort(a-1,p);
}
9.2
#include<stdio.h>
float Taxes(float n);
int main(int argc, char *argv[])
{
float taxes;
float income;
printf("Enter incomes:");
scanf("%f", &income);
taxes = Taxes(income);
printf("The taxes is:%.2f\n", taxes);
system("pause");
return 0;
}
float Taxes(float n)
{
if (n <= 750)return n*0.01;
else if (n <= 2250)return 7.5f + (n - 750)*0.02;
else if (n <= 3750)return 37.5f + (n - 2250)*0.03;
else if (n <= 5250)return 82.5f + (n - 3750)*0.04;
else if (n <= 7000)return 142.5f + (n - 5250)*0.05;
else
{
return 230.0f + (n - 7000)*0.06;
}
}