Problem sa kompajliranjemJa sam početnik u C++ i imam problem sa prevođenjem koda za izračunavanje broja Pi na broj decimala prema želji.
Koristim Dev-C++ ver.4.9.8.0 Prvo otvaram novu source datoteku u nju umetnem tj. kopiram priloženi source, pa zatim sa F9 pokrenem compile and run. Nakon nekog vremena dobijem poruku da imam greške i pominju se linije 31, 5, 2, 23 i 40.
Primjetio sam da kod mene, u poddirektoriju sys, ne postoje datoteka times.h nego postoji time.h i još neke slične. Takođe, odmah mi se otvori idatoteka iostream.h i pokazuje na redak gdje se poziva datoteka backward_warning.h
PS: Molio bih da mi se Leka ne javlja
Evo source slijedi:
////////////////////////////////////////////////////////////////////////////////
// pi 2.26 Dec 14 1999
// author: elephant <elephant AT linux DOT net DOT cn>
#include <iostream.h>
#include <math.h>
#include <sys/times.h>
void outputvalue(long long *value,long number)
{
long a,i,j;
cout<<value[0]<<".\n";
cout.fill('0');
for (i=1;i<=number/12;i++)
{
cout.width(12);
cout<<value;
if (!(i%8)) cout<<"\n";
}
cout.width(1);
for (j=1;j<=number%12;j++)
{
long long last=value;
for (a=0;a<12-j;a++) last=last/10;
cout<<last%10;
}
cout<<"\n";
}
int main(int argc,char **argv)
{
long number;
cout<<"digits of pi you are expecting: ";
cin>>number;
if ((number>1000000)||(number<100))
{
cout<<"sorry, but I expect it between 100 and 1000000.\n";
return(-1);
}
clock_t runtime=times(0);
long a,i,j;
long array=number/12+3;
long long *base=new long long[array+1];
long long *calc=new long long[array+1];
long long *total=new long long[array+1];
for (long i=0;i<=array;i++) total=0;
for (long step=0;step<2;step++)
{
long long remain;
long head;
long devide=(!step)?5:239;
long devidedouble=devide*devide;
remain=1;
for (i=0;i<=array;i++)
{
base=remain/devide;
// remain=(remain%devide)*1000000000000LL;
/**/ remain=(remain-base*devide)*1000000000000LL;
}
long loop=long(number*log(10)/log(devide)+1);
double ratio=log(devide)/log(10)/12;
long start;
for (i=0;i<=array;i++) calc=0;
for (j=1;j<=loop;j++,j++)
{
start=long(j*ratio);
remain=0;
if (!(j&2))
for (i=start;i<=array;)
{
a=i;
// calc+=remain/j;
// remain=(remain%j)*1000000000000LL+base[++i];
/**/ long long q=remain/j;
/**/ calc+=q;
/**/ remain-=q*j;
/**/ remain=remain*1000000000000LL+base[++i];
while (calc[a]>=1000000000000LL)
{
calc[a]-=1000000000000LL;
calc[--a]++;
}
}
else
for (i=start;i<=array;)
{
a=i;
// calc-=remain/j;
// remain=(remain%j)*1000000000000LL+base[++i];
/**/ long long q=remain/j;
/**/ calc-=q;
/**/ remain-=q*j;
/**/ remain=remain*1000000000000LL+base[++i];
while (calc[a]<0)
{
calc[a]+=1000000000000LL;
calc[--a]--;
}
}
remain=0;
if (!step)
{
head=j/12+2;
for (i=start;(i<=array)&&(i<=head);)
{
base=remain/devidedouble;
// remain=(remain%devidedouble)*1000000000000LL+base[++i];
/**/ remain-=base*devidedouble;
/**/ remain=remain*1000000000000LL+base[++i];
}
}
else
for (i=start;i<=array;)
{
base=remain/devidedouble;
// remain=(remain%devidedouble)*1000000000000LL+base[++i];
/**/ remain-=base*devidedouble;
/**/ remain=remain*1000000000000LL+base[++i];
}
}
if (!step)
{
total[array]+=calc[array]*16;
for (i=array-1;i>=0;i--)
{
total+=total[i+1]/1000000000000LL+calc*16;
total[i+1]%=1000000000000LL;
}
}
else
{
long long tail;
total[array]-=calc[array]*4;
for (i=array-1;i>=0;i--)
{
tail=total[i+1]%1000000000000LL;
total+=total[i+1]/1000000000000LL-((tail<0)?1:0)-calc*4;
total[i+1]=tail+((tail<0)?1000000000000LL:0);
}
}
}
runtime=times(0)-runtime;
cout<<"I'm glad to tell you that pi is ";
outputvalue(total,number);
cout<<"after calculated for "<<(float)runtime/100<<" seconds.\n";
return(0);
}
When you think everithing happens to you is so bad ....
remember that always could be even worse.
remember that always could be even worse.
