
Q - Instructiunea FOR
Authored by Laurentiu Lambrinoc
Computers
9th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
În secvenţa de mai jos, toate variabilele memorează numere naturale. Cu ce valori pot fi înlocuite punctele de suspensie din secvenţă astfel încât, la finalul executării secvenţei să se afişeze, în acestă ordine, valorile 16 şi 41?
a=...; b=...; for(i=3;i<=7;i++){c=a+b; x=a; a=b; b=c;} cout<<x<<c;
1, 1
3, 4
5, 2
2, 7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
În următoarea secvenţă de program, instrucţiunea de afişare se va executa de un număr de ori egal cu:
for (i=1;i<=3;i++) for (j=1;j<=5;j++) cout<<j;
0
1
10
15
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie secventa urmatoare:
a=1;
while(a<=10){cout<<a*a; a=a+1;}
Care dintre variantele de mai jos este echivalenta?
for(a=1;a<=10;a++) cout<<a*a;
for(a=1;a<=10;a++) {cout<<a*a; a=a+1;}
for(a=1;a<=10;a++) a=a+1;
for(a=1;a<=10;a=a*a) cout<<a;
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce valoare se va afisa in urma executarii secventei, daca s are initial valoarea 5:
for(i=1;i<=3;i++) s=s+i;
cout<<s;
10
5
6
11
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cu ce se pot înlocui punctele de suspensie astfel încât, în urma executării secvenţei de mai jos să se afişeze pe ecran valoarea 6?
s=0;
for(i=...; i<=...;i++) s=s+i;
cout<<s;
1 si 5
1 si 6
1 si 3
6 si 10
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