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2014-11-24 01:20:13 ¡¾´ó ÖРС¡¿ ä¯ÀÀ:9106´Î
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#include


#define N 12



typedef struct


{


char num [10];


double s;


}STREC;



double fun ( STREC *a, STREC *b, int *n )


{


}



main ()


{


STREC s[N]={{¡°GA05¡å,85}, {¡°GA03¡å,76}, {¡°GA02¡å,69}, {¡°GA04¡å,85},


{¡°GA01¡å,91}, {¡°GA07¡å,72}, {¡°GA08¡å,64}, {¡°GA06¡å,87},


{¡°GA09¡å,60}, {¡°GA11¡å,79}, {¡°GA12¡å,73}, {¡°GA10¡å,90}};


STREC h [N], t;


FILE *out ;


int i,j,n;


double ave;


ave=fun ( s, h, &n );


printf ( ¡°The %d student data which is higher than %7.3f:\n¡±, n, ave);


for ( i=0; i

printf (¡°%s %4.1f\n¡±, h[i]. num, h[i]. s);


printf (¡°\n¡±);


out=fopen(¡°out12.dat¡±,¡±w¡±);


fprintf(out,¡±%d\n%7.3f\n¡±, n, ave);


for(i=0;i

for(j=i+1;j

if(h[i].s

{


t=h[i] ;


h[i]=h[j];


h[j]=t;


}


for(i=0;i

fprintf(out, ¡°%4.1f\n¡±,h[i].s);


fclose(out);


}



90£®Çë±àдº¯Êýfun£¬Æ书ÄÜÊÇ£º¼ÆËã²¢Êä³öÏÂÁжàÏîʽֵ£º


Sn= (1-1/2) + (1/3-1/4)+¡­+(1/2n-1-1/2n)


ÀýÈ磬ÈôÖ÷º¯Êý´Ó¼üÅ̸ønÊäÈë8ºó£¬ÔòÊä³öΪS=0.662872¡£


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#include



double fun(int n)


{


}



main()


{


int n;


double s;


printf(¡°\nInput n: ¡°);


scanf(¡°%d¡±,&n);


s=fun(n);


printf(¡°\ns=%f\n¡±,s);


}



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ÊÔÌâ³ÌÐò£º


#include


#include


#include


char *fun(char *s,char *t)


{


char *p,*r,*a;


/********found********/


a=NuLL;


while(*s)


{


p=s;r=t;


while(*r)


/********found********/


if(r==p)


{


r++;


p++;


}


else


break;


if(*r==¡¯\0¡ä)


a=s;


s++;


}


return a;


}


main()


{


char s[100],t[100],*p;


clrscr();


printf(¡°\nplease enter string s:¡±);


scanf(¡°%s¡±,s);


printf(¡°\nplease enter substring t:¡±);


scanf(¡°%s¡±,t);


p=fun(s,t);


if(p)


printf(¡°\nthe result is:%s\n¡±,p);


else


printf(¡°\nnot found!\n¡±);


}




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ÊÔÌâ³ÌÐò£º


#include


#define N 10


/********found********/


void fun(int a[],int m)


{


int low=0,high=N-1,mid;


while(low<=high)


{


mid=(low+high)/2;


if(m

high=mid-1;


/********found********/


else


if(m>=a[mid])


low=mid+1;


else


return(mid);


}


return (-1);


}


main()


{


int i,a[N]={-3,4,7,9,13,45,67,89,100,180},k,m;


printf(¡°a:¡±);


for(i=0;i

printf(¡°%d ¡°,a[i]);


printf(¡°Enter m:¡±);


scanf(¡°%d¡±,&m);


k=fun(a,m);


if(k>=0)


printf(¡°m=%d,index=%d\n¡±,m,k);


else


printf(¡°Not be found!\n¡±);


}


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