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Rezolvare bac 2009-Sesiunea de vara
Subiectul I
1. 3
2.
a) 23949
b) n∈{1008,1009}
c) citeste n(numar natural)
nr<-0
p<-1
- repeta
| c<-n%10
| -daca c>0 si c<9 atunci
| | c<c+1
| |_
|
| nr<-nr+c*p
| p<-p*10
| n<-[n/10]
| pana cand n=0
|_
scrie nr
d)
#include <iostream>
using namespace std;
int main()
{
cout << "Hello world!" << endl;
unsigned int n;
int nr,p,c;
cin>>n;
nr=0;
p=1;
while(n!=0)
{
c=n%10;
if(c>0 && c<9)
c=c+1;
nr=nr+c*p;
p=p*10;
n=n/10;
}
cout<<nr;
return 0;
}
Subiectul II
1. 5
2. 5
3. f.x=f1.x*f2.y + f1.y*f2.x;
f.y=f1.y*f2.y;
4. ideale
5.
#include <iostream>
using namespace std;
int main()
{
cout << "Hello world!" << endl;
int a[24][24],n,i,j;
do
{
cout<<"Introduceti un numar cuprins intre 2 si 24 :";cin>>n;
}while(n<2 || n>24);
for(i=0;i<n;i++)
for(j=0;j<n;j++)
if(i==j)
a[i][j]=0;
else
a[i][j]=n-j;
for(i=0;i<n;i++)
{for(j=0;j<n;j++)
{
cout<<a[i][j]<<" ";
}
cout<<endl;
}
return 0;
}
Subiectul III
1. xk
{x1, x2, . . ., xk-1}
2. ABACABA
3.
a)
int nr(int n)
{
int f=1,c,i,t=0;
for(i=1;i<=n;i++)
f=f*i;
while(f!=0)
{
c=f%10;
if(c==0)
t++;
else
return t;
f=f/10;
}
}
b)
#include <iostream>
using namespace std;
int nr(int n)
{
int f=1,c,i,t=0;
for(i=1;i<=n;i++)
f=f*i;
while(f!=0)
{
c=f%10;
if(c==0)
t++;
else
return t;
f=f/10;
}
}
int main()
{
cout << "Hello world!" << endl;
int k,i=1,j,p;
do
{
cout<<"k=";cin>>k;
}while(k<=0 || k>1500);
do
{
nr(i);
i++;
}while(nr(i)<k);
for(j=1;j<=i;j++)
p=p*j;
cout<<"p="<<p;
return 0;
}
4.
#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
int main()
{
cout << "Hello world!" << endl;
int n,a,i,b,p;
ifstream f("BAC.TXT");
f>>n;
for(i=0;i<n;i++)
{f>>a>>b;
p=pow(2,14);
while(p>b)
p=p/2;
if(p>=a)
cout<<p<<" ";
else
cout<<"0 ";
}
f.close();
return 0;
}
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