C语言80面上机题.doc

上机题 十#includevoid main()int count(int x);int i,t;for(i=1;i=1000;i+)t=count(i);if(t%2!=0)printf(%dn,i);int count(int x)int i,n=0;for(i=1;i=x;i+)if(x%i=0)n+;return n;149162536496481100121144169196225256289324361400441484529576625676729784841900961Press any key to continueint prime(int);#includevoid main()int i,a,b,c,d,e,f,j,k,l,m,q;for(i=1;i=5000;i+)a=i;b=i;c=i;d=i;while(a!=0)e=a%10;f=prime(e);if(f=0)j=f;break;elsej=1; a/=10;while(b!=0)k=prime(b);if(k=0)l=k;break;elsel=1; b/=10;m=prime(c);q=m;printf(%dn,q);if(q)printf(%dn,d);printf(%dn,m);int prime(int x)int i,s=0;if(x=1)return 0;elsefor(i=1;i=x;i+)if(x%i=0)s+=i;if(s=(x+1)return 1;elsereturn 0;80 6.1 #include#includevoid main()int n,i=1;long s=0;scanf(%d,&n);if(n=1&n=9)while(i=n)s+=pow(i,i);i+;printf(%dn,s);elseprintf(您的输入有误，请重新输入n);80 6.2#includeint f131(int x)int i,s=0;if(x=1)return 0;elsefor(i=1;i=x;i+)if(x%i=0)s+=i;if(s=(x+1)return 1;elsereturn 0;void main()int x,t;scanf(%d,&x);t=f131(x);if(t=1)printf(是n);elseprintf(不是n);80 6.3#include#includedouble g(double ,double);void main()double x,y,s;scanf(%lf,%lf,&x,&y);s=g(x,y);printf(%lfn,s);double g(double x ,double y)double s,v;if(x=y)v=(1+exp(-(x+y)/(1+exp(x+y);elsev=(1+exp(-x+y)/(1+exp(x-y);s=v/(x+y);return s;81 6.4#includeint digit(int,int);void main()int n,k,s;scanf(%d,%d,&n,&k);s=digit(n,k);printf(%dn,s);int digit(int n,int k)int t,i=0;while(ik)t=n%10;n/=10;i+;if(t=0)return -1;elsereturn t;81 6.5#includeint f131(int x)int i,s=0;if(x=1)return 0;elsefor(i=1;i=x;i+)if(x%i=0)s+=i;if(s=(x+1)return 1;elsereturn 0;void main()int a,b,c,t;scanf(%d,&a);while(a!=0)t=a%10;b=f131(t);if(b=0)c=b;elsec=1;a/=10;if(c=1)printf(是n);elseprintf(不是n);80 6.6(2) #includeint f131(int x);void main()int m,i,j;printf(请输入一大于五的奇数:);scanf(%d,&m);if(m%2!=0&m5)for(i=2;im;i+)if(f131(i)for(j=i;j=m-i-2;j+)if(f131(i)&f131(j)&f131(m-i-j)printf(%d+%d+%d=%dn,i,j,m-i-j,m);elseprintf(您的输入有误，请重新输入：);int f131(int x)int y=1,i=2;while(ix&y)if(x%i=0)y=0;i+;return y;80 6.8#includeint f331(int n)if(n=1)return 1;elseif(n=2)return 1;elsereturn(f331(n-2)+f331(n-1);void main()int i=1,x;scanf(%d,&x);while(f331(i)x)i+;printf(%dn,f331(i);83 6.11int f113(int);int f131(int);#includevoid main()int x,i,t,n=0,y,q;for(i=1;i=1000;i+)x=i;q=f131(f113(i);if(q=0)continue;elsewhile(x!=0)t=x%10;y=f131(t);if(y=0)break;elsex/=10;y=1;if(y=1)printf(%d,i);n+;if(n%5=0)printf(n);int f113(int x)int s=0,t;while(x!=0)t=x%10;s+=t;x/=10;return s; int f131(int x)int i,s=0;if(x=1)return 0;elsefor(i=1;i=x;i+)if(x%i=0)s+=i;if(s=(x+1)return 1;elsereturn 0;2,3,5,7,23,25,32,52,223,227,232,272,322,335,337,353,355,373,377,533,535,553,557,575,577,722,733,737,755,757,773,775,Press any key to continue83 6.12int f(int);#includevoid main()int n,s;scanf(%d,&n);s=f(n);printf(%dn,s);int f(int n)int t,q;if(n=1)return 1;elseif(n%2=0)return f(n/2);elset=f(n-1)/2);q=f(n+1)/2);return t+q;15125Press any key to continue1007Press any key to continue83 6.13 #define SUB(x,y)(x)*y#includevoid main()int a=3,b=4,c;c=SUB(a+,b+);printf(%d,%d,%dn,a,b,c);4,5,12Press any key to continue#define y 1#includevoid main()int x=1;printf(x=y:%d,x=y:%d,x=y:%dn,x=y,x=y,x=y);x=y:1,x=y:1,x=y:0Press any key to continue#include#define N 2#define M N+1#define NUM (M+1)*M/2void main()int i,n=0;for(i=1;i=NUM;i+)n+;printf(%dn,n);12345678Press any key to continue80 6.14 int sub(int);#includevoid main()int i;for(i=0;i3;i+)printf(%dn,sub(i);int sub(int x)int y=0;static int z=0;y+=x+;z+;printf(%d,%d,%dn,x,y,z);return y;1,0,102,1,213,2,32Press any key to continue#includeint x=1,y=2;void sub(int y)x+;y+;void main()int x=2;sub(x);printf(x+y=%dn,x+y);/因为局部变量的可见性比全局变量的可见性高，又int x=2是实参所以x=2并且y=2,所以x+y的值就是4#includevoid generate(char x,char y)if(x=y)pu