test-vectori-cls9
Quiz
•
Computers
•
9th Grade
•
Practice Problem
•
Easy
Dumitru Tomulescu
Used 4+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ce valoare va fi afișată în urma execuției programului următor ?
int main()
{
int v[] = {1, 1, 2, 0, 4, 5, 6};
int i = 0, nr = 0;
do
{ if (i == v[i]) nr++;
i++;
}
while (i < 6 && v[i] != 0);
cout<< nr;
return 0;
}
0
1
2
3
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Ce afişează secvenţa:
int a[] = {14, 3, 7, 0, -4, 3, 10, 15, 7};
int s = 0;
for (int i = 0; i < 9; i++)
if (i % 2 == 0) s += a[i];
cout << s;
0
34
21
50
3.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Fie secvența:
for (i = 0; i < 20; i++)
a[i] = i * i – i;
Câte din primele 20 de componente ale vectorului a memorează valori care au cifra unităților 0?
6
7
8
9
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Ce afișează secvența:
for (i = 1; i <= 10; i++)
a[i] = 0;
for (i = 1; i <= 4; i++)
a[2 * i + 1] = i + 2;
for (i = 1; i <= 10; i++)
cout << a[i] << " ";
4 5 6 0 0 0 0 0 0 0
0 5 0 7 0 9 0 11 0 0
0 0 3 0 4 0 5 0 6 0
0 3 0 4 0 5 0 6 0 0
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Secvenţa următoare de program realizează:
int n,i,x,a[20];
...............
for(i=0;i<n-1;i++)
if(a[i+1]<a[i])
{
x=a[i];
a[i]=a[i+1];
a[i+1]=x;
}
................
sortarea crescătoare a vectorului folosind metoda selectării directe;
calcularea valorii minime a elementelor în primul element al vectorului;
calcularea valorii maxime a elementelor în ultimul element al vectorului.
sortarea crescătoare a vectorului folosind metoda interschimbarii;
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Ce afişează următoarea secvenţă de instrucţiuni dacă n=12 şi elementele vectorului sunt {1,2,2,3,1,2,1,3,4,1,2,1}?
int v[20],n,i,j,k=0;
cout<<"n=";cin>>n;
for(i=0;i<n;i++)
cin>>v[i];
for(i=0;i<n-1;i++)
for(j=i+1;j<n;j++)
if(v[i]==v[j])
k++;
cout<<k;
4
20
17
18
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Ce afişează următoarea secvenţă de instrucţiuni dacă n=5, elementele vectorului sunt {1,2,3,4,5} şi k=3?
int v[20],n,i,k;
cout<<"n=";cin>>n;
for(i=0;i<n;i++)
cin>>v[i];
cin>>k;
i=n;
while(i!=k)
{
v[i]=v[i-1];i--;
}
for(i=0;i<=n;i++)
cout<<v[i]<<" ";
1 2 3 4 5 6
1 2 3 0 4 5
1 2 3 4 4 5
1 2 3 3 5
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