prog1.c

南开百题的源码,共30道,都已经通过测试,希望对大家有所帮助.

#include <stdio.h>
int a[300], cnt=0 ;
double pjz1=0.0, pjz2=0.0 ;
jsValue()
{
int I,thou,hun,ten,data,n=0;
for(I=0;I<300;I++)
{
thou=a[I]/1000;
hun=a[I]%1000/100;
ten=a[I]%100/10;
data=a[I]%10;
if (data-thou-hun-ten >0)
{
cnt++;
pjz1+=a[I];
}
else 
{
n++;
pjz2+=a[I];
  }
}
pjz1/=cnt;
pjz2/=n;
}
main()
{
  int i ;

  readDat() ;
  jsValue() ;
  writeDat() ;
  printf("cnt=%d\n满足条件的平均值pzj1=%7.2lf\n不满足条件的平均值pzj2=%7.2lf\n", cnt,pjz1,pjz2);
}

readDat()
{
  FILE *fp ;
  int i ;
  fp = fopen("in.dat","r") ;
  for(i = 0 ; i < 300 ; i++) fscanf(fp, "%d,", &a[i]) ;
  fclose(fp) ;
}

writeDat()
{
  FILE *fp ;
  int i ;
  fp = fopen("out.dat","w") ;
  fprintf(fp, "%d\n%7.2lf\n%7.2lf\n", cnt, pjz1, pjz2) ;
  fclose(fp) ;
}