西工大C语言程序作业

1、T031、高低交换#include <stdio.h>inline int xchg(unsigned char n) int high,low,result; high=n&0xF0; low=n&0x0F; result=low*16+high/16; return result;int main() int input; scanf("%d",&input); printf("%dn",xchg(unsigned char)input); return 0; T032、亲合数#include<stdio.h

2、>int main() long i,j,m,n,s1000,sum1,sum2; scanf("%d%d",&m,&n); j=0;sum1=sum2=0; for(i=1;i<=m/2;i+) if(m%i=0) sj+=i; for(i=0;i<j;i+) sum1+=si; j=0; for(i=1;i<=n/2;i+) if(n%i=0) sj+=i; for(i=0;i<j;i+) sum2+=si; if(sum1=n&&sum2=m) printf("YESn"); else

3、printf("NOn"); return 0;T033、逆序整数#include<stdio.h>int main() int num,resver=0; scanf("%d",&num); while(num) resver=10*resver+num%10; num/=10; printf("%dn",resver); return 0;T034 、循环移位 #include <stdio.h>#include <stdlib.h>int move(int value,int n) i

4、f(n<0) n=-n; value=(value<<n|value>>(32-n); else value=(value>>n|value<<(32-n); return(value);int main() int x,y; scanf("%d %d",&x,&y); printf("%dn",move(x,y); return 0;T035、A+B|取两位#include <stdio.h>#define N 50int count(int a,int b)int c=

5、a+b;return c%100;int main()int n,arrN2;scanf("%d",&n);for(int i=0;i<n;i+)scanf("%d %d",&arri0,&arri1);printf("n");for(int i=0;i<n;i+)printf("%dn",count(arri0,arri1);return 0;T036、组合数#include <stdio.h>int ZuHe(int n,int m) int i = 1; int

6、 temp1 = 1,temp2 =1; if (n=m) return 1; else for (i=1;i<=m;i+) temp1 *= n-i+1; temp2 *=i; temp1 /=temp2; return temp1; int main() int n,m,num;scanf("%d%d",&n,&m); if (n<m) printf("wrong"); num = ZuHe(n,m); printf("%dn",num);T037、发工资的日子#include<stdio.h&g

7、t;int main()int N,sum,n;scanf("%d",&N);sum=0;while(N-)scanf("%d",&n);sum+=n/100;if(n%100=0) continue;else n%=100;sum+=n/50;if(n%50=0) continue;else n%=50;sum+=n/10;if(n%10=0)continue;else n%=10;sum+=n/5;if(n%5=0)continue;else n%=5;sum+=n/2;if(n%2=0)continue;else n%=2;sum+

8、=n;printf("%dn",sum);return 0;T038、最大整数#include <stdio.h>int getfloor(double a)if(a<0&&(int)a!=a)return (int)a-1;return (int)a;int main()double a;scanf("%lf",&a);printf("%dn",getfloor(a);T039、获取指定二进制位#include <stdio.h>int getbit(short n,short

9、k)short s=1,a;s=s<<(k-1);a=n&s;if(a)return 1;else return 0;int main() short n,k,y; int getbit(short n,short k) ; scanf("%hd%hd",&n,&k); if(1<=k&&k<=16) y=getbit(n,k); printf("%d",y); return 0;T040、方差#include <stdio.h>#include <math.h>double s(double x,int n);main() int n,i; double x50,vs;scanf("%d",&n);for (i=0;i<n;i+) scanf("%lf",&xi);vs=s(x,n);printf("%.6f",