Untitled

From Ungracious Wigeon, 6 Years ago, written in C++.

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#include <iostream>

using namespace std;

int main()

{

int i,n;

double a[n];

double b[n];

double c[n];

double d[n];

double x[n];

double bet[n];

double gam[n];

cout << "Podaj n: ";

cin >> n;

for(int i=0; i<n; i++)

{

cout << "Podaj A[: "<<i<<"] = ";

cin >> a[i];

cout << "Podaj B[: "<<i<<"] = ";

cin >> b[i];

cout << "Podaj C[: "<<i<<"] = ";

cin >> c[i];

cout << "Podaj D[: "<<i<<"] = ";

cin >> d[i];

}

a[0]=c[n-1]=0;

bet[0]=-c[0]/b[0];

gam[0]=d[0]/b[0];

for(int i=1; i<n; i++)

{

bet[i]=-c[i]/((a[i]*bet[i-1])+b[i]);

gam[i]=(d[i]-a[i]*gam[i-1])/((a[i]*bet[i-1])+b[i]);

}

x[n-1]=gam[n-1];

for(int i=n-2; i>=0; i--)

{

x[i]=bet[i]*x[i+1]+gam[i];

}

for(int i=0; i<n; i++)

{

cout<<x[i] << endl;

}

return 0;

}

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#include &lt;iostream&gt; 
 
using namespace std; 
 
int main() 
{ 
   int i,n; 
   double a[n]; 
   double b[n]; 
   double c[n]; 
   double d[n]; 
   double x[n]; 
   double bet[n]; 
   double gam[n]; 
 
   cout &lt;&lt; &quot;Podaj n: &quot;; 
   cin &gt;&gt; n; 
 
   for(int i=0; i&lt;n; i++) 
   { 
       cout &lt;&lt; &quot;Podaj A[: &quot;&lt;&lt;i&lt;&lt;&quot;] = &quot;; 
       cin &gt;&gt; a[i]; 
       cout &lt;&lt; &quot;Podaj B[: &quot;&lt;&lt;i&lt;&lt;&quot;] = &quot;; 
       cin &gt;&gt; b[i]; 
       cout &lt;&lt; &quot;Podaj C[: &quot;&lt;&lt;i&lt;&lt;&quot;] = &quot;; 
       cin &gt;&gt; c[i]; 
       cout &lt;&lt; &quot;Podaj D[: &quot;&lt;&lt;i&lt;&lt;&quot;] = &quot;; 
       cin &gt;&gt; d[i]; 
   } 
 
   a[0]=c[n-1]=0; 
 
   bet[0]=-c[0]/b[0]; 
   gam[0]=d[0]/b[0]; 
 
   for(int i=1; i&lt;n; i++) 
   { 
       bet[i]=-c[i]/((a[i]*bet[i-1])+b[i]); 
       gam[i]=(d[i]-a[i]*gam[i-1])/((a[i]*bet[i-1])+b[i]); 
    } 
 
   x[n-1]=gam[n-1]; 
 
   for(int i=n-2; i&gt;=0; i--) 
   { 
       x[i]=bet[i]*x[i+1]+gam[i]; 
   } 
 
   for(int i=0; i&lt;n; i++) 
   { 
       cout&lt;&lt;x[i] &lt;&lt; endl; 
   } 
   return 0; 
}

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