2013年3月二C上机编程题答案.doc

本答案仅供参考（请不要随意更改）A类数学表达式（112）（N）1、#include #include float fun(int m,int n)float t1=1,t2=1,t3=1,i;for(i=1;i=m;i+)t1*=i;for(i=1;i=n;i+)t2*=i;for(i=1;i=m-n;i+)t3*=i;return t1/(t2*t3);main() printf(P=%fn,fun(12,8); 2#include #include #include float fun()float x1=0.0,x0; x0=x1; x1=cos(x0); while(fabs(x0-x1)=0.000001) x0=x1; x1=cos(x0); return x1;main() printf(Root=%fn,fun(); 3#include #include double fun(int n) double f0=0,f1=1,fn; fn=f0+f1; while(fn=n) f0=f1; f1=fn; fn=f0+f1; return fn;main() /*主函数*/ printf(%fn,fun(1000); 4#include #include void fun (float *sn,int n)float i,t=1;*sn=0; for(i=0;i=n;i+) *sn+=t/(2*i+1); t=-t; main() /*主函数*/ int n=11;float s; fun(&s,n);printf(s=%f n=%dn,s,n);5#include #include #include double fun( int m)double s=0，i;for(i=1;i=m;i+) s+=log(i); return sqrt(s);main() printf(%fn,fun(20); 6#include #include #include double fun(double x,int n) double s=x+1,i,t=1; for(i=2;i=n;i+) t*=i;s+=pow(x,i)/t; return s;main() printf(%fn,fun(0.3,10); 7#include #include double fun (int n)double s=0, i; for(i=1;i=n;i+) s+=1.0/(i*(i+1); return s;main( ) printf(%f,fun(10);8#include #include double fun ( double eps)double s=0,t=1,i,m=1;for(i=1;t/m=eps;i+)s+=t/m;t=t*i;m=m*(2*i+1);return 2*s;main( ) double x; printf(Input eps:) ; scanf(%lf,&x); printf(neps = %lf, PI=%lfn, x, fun(x); 9#include #include double fun(double x) double i,t=1,m=1,s=0; for(i=1;fabs(m/t)=0.000001;i+) s=s+m/t; m*=(0.5+1-i)*x; t=t*i; return s;main() double x,s; printf(Input x: ); scanf(%lf,&x); s=fun(x); printf(s=%fn,s);10#include double fun(int n)double s=0,t=0,i;for(i=1;i=n;i+)t+=i;s+=1/t;return s;main() int n; double s; void NONO ( ); printf(nPlease enter N:); scanf(%d, &n); s = fun(n); printf(the result is: %fn, s); NONO();void NONO ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ FILE *fp, *wf ; int i, n ; double s; fp = fopen(K:K1524000108in.dat,r) ; wf = fopen(K:K1524000108out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(fp, %d, &n) ; s = fun(n) ; fprintf(wf, %fn, s) ; fclose(fp) ; fclose(wf) ;11#include double fun(int n) double t,sn=1.0; int i,j; for(i=1;i=n;i+) t=1.0; for(j=1;j=i;j+) t*=j; sn+=1.0/t; return sn; void main() int n; double s; FILE *out; printf(nInput n: ); scanf(%d,&n); s=fun(n); printf(s=%fn,s); /*/ out=fopen(out.dat,w); fprintf(out,%fn,fun(15); fclose(out); /*/12#include#includedouble fun(double x10) double x1=0.0,s=0.0; int i; for(i=0;i10;i+) x1=x1+xi; x1=x1/10; /*求10个数的平均值*/ for(i=0;i10;i+) s=s+(xi-x1)*(xi-x1); return sqrt(s/10); /*求10个数的方差*/void main() double s,x10=95.0,89.0,76.0,65.0,88.0,72.0,85.0,81.0,90.0,56.0; int i; printf(nThe original data is:n); for(i=0;i10;i+) printf(%6.1f ,xi); printf(nn ); s=fun(x); printf(s=%fnn ,s);B类最大值和最小值（15）1#include #include void fun(int a, int n , int *max, int *d )int i;*d=0;*max=a0;for(i=0;ia*d)*d=i;*max=a*d;main() int i, x20, max , index, n = 10; randomize() ; for (i=0;i n;i+) xi = rand()%50; printf(%4d, xi) ; printf(n); fun( x, n , &max, &index); printf(Max =%5d , Index =%4dn,max, index ); 2#include double fun(double a , int n) double sum=0,max,min;int i; max=min=a0; for(i=0;in;i+) sum=sum+ai; if(maxai)min=ai; sum=sum-max-min; return(sum/(n-2);main() double b10, r; int i; printf(输入10个分数放入b数组中 : ); for (i=0; i10; i+) scanf(%lf,&bi); printf(输入的10个分数是 : ); for (i=0; i10; i+) printf(%4.1lf ,bi); printf(n); r = fun(b, 10); printf(去掉最高分和最低分后的平均分 : %fn, r ); 3#include #include #define M 3#define N 4void fun(int ttMN,int ppN)int i,j;for(j=0;jN;j+)ppj=tt0j;for(i=1;iM;i+)if(ttijppj)ppj=ttij;main() int tMN=22,45,56,30, 19,33,45,38, 20,22,66,40; int pN,i,j,k; printf(The original data is:n); for (i=0;iM;i+) for (j=0;jN;j+) printf(%6d,tij); printf(n); fun(t,p); printf(nThe result is:n); for(k=0;kN;k+) printf(%4d,pk); printf(n); 4#include #include int fun(int *s, int t, int *k)int i;*k=0;for(i=1;is*k)*k=i;main( ) int a10=876,675,896,101,301,401,980,431,451,777, k ; clrscr() ; fun(a, 10, &k) ; printf(%d, %dn, k, ak) ; 5#include #define M 4int fun (int aM) int i,j,max=a00; for(i=0;i2;i+) for(j=0;jM;j+) if(maxaij) max=aij; return max;main( ) int arr2M=5,8,3,45,76,-4,12,82 ;void NONO (); printf(max =%dn, fun(arr) ; NONO( ) ;C类二维数组行列下标（18）1#include #include void fun(int a33,int b33) int i,j; for(i=0;i3;i+) for(j=0;j3;j+) bij=aij+aji;main() int a33=1,2,3,4,5,6,7,8,9,t33; int i,j; fun(a,t); for(i=0;i3;i+) for(j=0;j3;j+) printf(%7d,tij); printf(n); 2#include #include #include #define N 5int fun(int aN,int m) int i,j; for(i=0;iN;i+) for(j=i;jN;j+) aij*=m;main() int aNN,m,i,j; printf(* The array *n); for (i=0;iN;i+) for (j=0;j=3); printf(m=%4dn,m); fun(a,m); printf(THE RESULTn); for(i=0;iN;i+) for (j=0;jN;j+) printf(%4d,aij); printf(n); 3#include #include int fun(int array33)int t,i,j; for(i=0;i2;i+)for(j=1;j3;j+) t=arrayij; arrayij=arrayji; arrayji=t; main() int i,j; int array33=100,200,300, 400,500,600, 700,800,900; for (i=0;i3;i+) for (j=0;j3;j+) printf(%7d,arrayij); printf(n); fun(array); printf(Converted array:n); for(i=0;i3;i+) for(j=0;j3;j+) printf(%7d,arrayij); printf(n); 4#include#include#include#define N 5double fun (int wN) int i,j;double sum=0; for(j=0;jN;j+)sum+=w0j+wN-1j; for(i=1;iN-1;i+)sum+=wi0+wiN-1;return sum;void main() int aNN=0,1,2,7,9,1,9,7,4,5,2,3,8,3,1,4,5,6,8,2,5,9,1,4,1; int i, j; double s; printf(*The array*n ); for (i=0; iN; i+) for (j=0;jN;j+) printf(%4d ,aij); printf(n ); s=fun(a); printf(*THE RESULT*n ); printf(The sum is : %lfn ,s);5.#include void fun(int (*s)10, int *b, int *n, int mm, int nn)int i,j;*n=0; for(i=0;imm;i+) for(j=0;jnn;j+) b(*n)+=sij;main() int w1010 = 33,33,33,33,44,44,44,44,55,55,55,55,i,j ; int a100 = 0, n = 0 ; printf(The matrix:n) ; for(i = 0 ; i 3 ; i+) for(j = 0 ; j 4 ; j+) printf(%3d,wij) ; printf(n) ; fun(w, a, &n, 3, 4) ; printf(The A array:n) ; for(i = 0 ; i n ; i+) printf(%3d,ai);printf(nn) ; 6#include void fun(int s10, int b, int *n, int mm, int nn) /* 以下代码仅供参考 */ int i,j,np=0; /* np用作b数组下标 */ for(i=0;inn;i+) for(j=0;jmm;j+) bnp+=sji; *n=np;main() int w1010=33,33,33,33,44,44,44,44,55,55,55,55,i,j; int a100=0, n=0; printf(The matrix:n); for(i=0; i3; i+) for(j=0;j4; j+)printf(%3d,wij); printf(n); fun(w,a,&n,3,4); printf(The A array:n); for(i=0;in;i+)printf(%3d,ai);printf(nn);7#include #include #define N 5void fun ( int aN )int i,j;for(i=0;iN;i+)for(j=0;j=i;j+)aij=0;main ( ) void NONO( ); int aNN, i, j; printf(* The array *n); for ( i =0; iN; i+ ) for ( j =0; jN; j+ ) aij = rand()%10; printf( %4d, aij ); printf(n); fun ( a ); printf (THE RESULTn); for ( i =0; iN; i+ ) for ( j =0; jN; j+ ) printf( %4d, aij ); printf(n); NONO( );void NONO( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ FILE *rf, *wf ; int i, j, a55 ; rf = fopen(K:K1524000108in.dat,r) ; wf = fopen(K:K1524000108out.dat,w) ; for(i = 0 ; i 5 ; i+) for(j = 0 ; j 5 ; j+) fscanf(rf, %d , &aij) ; fun(a) ; for ( i = 0; i 5; i+ ) for ( j = 0; j 5; j+ ) fprintf(wf, %4d, aij ); fprintf(wf, n); fclose(rf) ; fclose(wf) ;8#include #include #define N 5void fun ( int aN, int n )int i,j;for(i=0;iN;i+)for(j=0;j=i;j+)aij*=n;main ( ) void NONO( ); int aNN, n, i, j; printf(* The array *n); for ( i =0; iN; i+ ) for ( j =0; j=3 ); printf(n = %4dn,n); fun ( a, n ); printf (* THE RESULT *n); for ( i =0; iN; i+ ) for ( j =0; jN; j+ ) printf( %4d, aij ); printf(n); NONO( );void NONO( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ FILE *rf, *wf ; int i, j, n, a55 ; rf = fopen(K:K1524000103in.dat, r) ; wf = fopen(K:K1524000103out.dat, w) ; for(i = 0 ; i 5 ; i+) for(j = 0 ; j 5 ; j+) fscanf(rf, %d , &aij) ; fscanf(rf, %d, &n) ; fun(a, n) ; for ( i = 0; i 5; i+ ) for ( j = 0; j 5; j+ ) fprintf(wf, %4d, aij ); fprintf(wf, n); fclose(rf) ; fclose(wf) ;D类素数（13）1#include #include void fun(int m,int *k,int xx)int i,j;*k=0;for(i=2;im;i+) for(j=2;ji;j+) if(i%j=0) break; if(ji) xx(*k)+=i;main() int m,n,zz100; printf(nPlease enter an integer number between 10 and 100:); scanf(%d,&n); fun(n,&m,zz); printf(nnThere are %d non-prime numbers less than %d:,m,n); for (n=0;nm;n+) printf(n %4dn,zzn);2将大于形参m且紧靠m的k个素数存入xx数组中。void fun(int m,int k,int xx) /* 以下代码仅供参考 */ int i, j=1, t=m+1; while(j=k) /* 以下完成判断素数，并存放到数组xx中 */for(i=2;i=t)xxj-1=t;j+; t+; main()int m,xx100,k,i;scanf(%d,%d,&m,&k);fun(m,k,xx);for(i=0;ik;i+)printf(%3d,xxi);3#include #include double fun(int n)int i,j;double s=0; for(i=3;in;i+) for(j=2;j=i) s+=sqrt(i); return s;main() int n; double sum; printf(nnInput n: ); scanf(%d,&n); sum=fun(n); printf(nnsum=%fnn,sum); E数学其它（117）1#include #include void fun(int a,int b,long *c)*c=a/10*1000+a%10*10+b/10+b%10*100;main() int a,b;long c; printf(Input a,b:); scanf(%d%d,&a,&b); fun(a,b,&c); printf(The result is:%ldn,c); 2#include #include #define M 200int aa1000;void fun(int *n)int i;*n=0;for(i=1;i1000;i+)if(i%7=0|i%11=0)&i%77!=0)aa(*n)+=i;main() int n,k; fun( &n); for(k=0;kn;k+) if(k+1)%10=0) printf(n); else printf(%5d,aak); 3#include #include unsigned fun(unsigned w)long t=10;while(w/t!=0)t*=10;return w%(t/10);main() unsigned x; printf(Enter a unsigned integer number: );scanf(%u,&x); printf(The original data is :%un,x); if (x10) printf(Data error!); else printf(The result:%un,fun(x);4#include #include double fun(double x9)int i;double s=0;for(i=1;i9;i+)s=s+sqrt(xi-1+xi)/2) ;return s;main() double s,a9=12.0,34.0,4.0,23.0,34.0,45.0,18.0,3.0,11.0; int i; printf(nThe original data is :n); for(i=0;i9;i+)printf(%6.1f,ai); printf(nn); s=fun(a); printf(s=%fnn,s);5#include #include #define N 20fun( int *a,int n,int *odd,int *even)int i;*odd=0;*even=0;for(i=0;in;i+)if(ai%2!=0)*odd=*odd+ai;else*even+=ai;main() int aN=1,9,2,3,11,6,i,n=6,odd,even; printf(The original data is:n); for (i=0;in;i+) printf(%5d,*(a+i); printf(nn); fun(a,n,&odd,&even); printf(The sum of odd numbers: %dn,odd); printf(The sum of even numbers: %dn,even); 6#include #include #define N 15int fun( int *s, int x) int i;for(i=0;iN;i+)if(x=si) return i;return -1;main() int aN= 29,13,5,22,10,9,3,18,22,25,14,15,2,7,27,i,x,index; printf(a数组中的数据 :n); for(i=0; iN; i+) printf(%4d,ai); printf(n); printf(给x输入待查找的数 : ); scanf(%d,&x); index=fun( a, x ); printf(index=%dn,index);7#include #include #include int fun(int score,int m,int below)float ave=0;int i,j=0;for(i=0;im;i+)ave+=scorei;ave/=m;for(i=0;im;i+)if(scoreiave)belowj+=scorei;return j;main() int i,n,below9; int score9=10,20,30,40,50,60,70,80,90; n=fun(score,9,below); printf(nBelow the average score are:); for(i=0;in;i+) printf(%d ,belowi); 8#include #include void fun(int x,int pp,int *n)int i;*n=0;for(i=1;i=x;i=i+2) if(x%i=0) pp(*n)+=i;main() int x,aa1000,n,i; printf(nPlease enter an integer number:n);scanf(%d,&x); fun(x,aa,&n); for(i=0;in;i+) printf(%d ,aai); printf(n); 9#include #include int fun ( int x )int i;i=x*x;if(i%10=x|i%100=x)return 1;elsereturn 0;main( ) int x, y; printf( nPlease enter a integer numbers: ); scanf ( %d, &x ); if ( x 100 | x 0 ) printf (data error !n); exit(0); y = fun ( x ); if ( y ) printf (%d YESn, x); else printf (%d NO!n, x); 10#include #include #define M 20double Acc( int k, double dd )double s=0;int i;for(i=0;ik;i+)s+=(ddi-(long)ddi);return s;main() int i, m; double x, ttM; printf(nPlease enter number of numbers: ); scanf(%d, &m ); printf(nPlease enter %d decimal numbers:n,m); for( i = 0; i m; i+ ) scanf(%lf, &x ); tti = x ; printf( nThe sum of their decimal part is: %lfn, Acc(m, tt); 11#include #include #include #define M 20double Pdt( int n, double pp )double s=0;int i;for(i=0;in;i+)s+=(long)ppi;return s; main( ) int i, m; double ttM; printf(nPlease enter number of numbers: ); scanf(%d, &m ); printf(nPlease enter %d decimal numbers: , m); for( i = 0; i m; i+ ) scanf(%lf, &tti ); printf( nThe product of their integer part is: %lf., Pdt(m, tt) ); 12#include #define N 80void fun(int *w, int p, int n)int i,j,t;for(i=0;ip;i+)t=w0;for(j=1;jn;j+)wj-1=wj;wn-1=t;main() int aN=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15; int i,p,n=15; printf(The original data:n); for(i=0; in; i+)printf(%3d,ai); printf(nnEnter p: );scanf(%d,&p); fun(a,p,n); printf(nThe data after moving:n); for(i=0; in; i+)printf(%3d,ai); printf(nn); 13#include #define N 80int fun(int a, int n)int i,j=0;for(i=1;in;i+)if(ai-1ai) aj+=ai-