西工大C语言程序作业.doc

T031、高低交换#include 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#includeint 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;ij;i+) sum1+=si; j=0; for(i=1;i=n/2;i+) if(n%i=0) sj+=i; for(i=0;ij;i+) sum2+=si; if(sum1=n&sum2=m) printf(YESn); else printf(NOn); return 0;T033、逆序整数#includeint 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 #include int move(int value,int n) if(n0) n=-n; value=(value(32-n); else value=(valuen|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 #define N 50int count(int a,int b)int c=a+b;return c%100;int main()int n,arrN2;scanf(%d,&n);for(int i=0;in;i+)scanf(%d %d,&arri0,&arri1);printf(n);for(int i=0;in;i+)printf(%dn,count(arri0,arri1);return 0;T036、组合数#include int ZuHe(int n,int m) int i = 1; int 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 (nm) printf(wrong); num = ZuHe(n,m); printf(%dn,num);T037、发工资的日子#includeint 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+=n;printf(%dn,sum);return 0;T038、最大整数#include int getfloor(double a)if(a0&(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 int getbit(short n,short 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 #include double s(double x,int n);main() int n,i; double x50,vs;scanf(%d,&n);for (i=0;in;i+) scanf(%lf,&xi);vs=s(x,n);printf(%.6f,vs);return 0;double s(doubl