第二套三

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#include <stdio.h>#define   N   16typedef  struct{  char  num[10];   int   s;} STREC;void  fun( STREC  a[] ){int i,j;STREC t;for(i=1;i<N;i++)for(j=0;j<N-1;j++)if(a[j].s<a[j+1].s){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){  STREC  s[N]={{"GA005",85},{"GA003",76},{"GA002",69},{"GA004",85},{"GA001",91},{"GA007",72},{"GA008",64},{"GA006",87},{"GA015",85},{"GA013",91},{"GA012",64},{"GA014",91},{"GA011",66},{"GA017",64},{"GA018",64},{"GA016",72}};   int  i;FILE *out ;   fun( s );   printf("The data after sorted :\n");   for(i=0;i<N; i++)   {  if( (i)%4==0 )printf("\n");      printf("%s  %4d  ",s[i].num,s[i].s);   }   printf("\n");   out = fopen("out.dat","w") ;   for(i=0;i<N; i++)   {  if( (i)%4==0 && i) fprintf(out, "\n");      fprintf(out, "%4d  ",s[i].s);   }   fprintf(out,"\n");   fclose(out) ;}

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