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MCQs C++ |UGC-NET|GATE|Computer Science

11.Find the output for the following C programr main() { char *ptr = "Ramco Systems"; *ptr++; printf("%sn",ptr); ptr++; printf("%sn",ptr); }
A.Ramco Systemsnamco Systemsn
B.Ramco systems
C.amco Systems
D.Empty string
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Explanation
12.main() { int a,b,result; printf("nEnter the numbers to be multiplied :"); scanf("%d%d",&a,&b); result=0; while(b != 0) { if (b&01) result=result+a; a<<=1; b>>=1; } printf("nResult:%d",result); } For a=8 & b=6 what will be the output
A.68
B.86
C.48
D.84
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13.Between a long pointer and a char pointer , which one consumes more memory?
A.long pointer
B.Char pointer
C.Both will occupy same memory
D.None of above
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14.main() { int a[]={2,4,6,8,10}; int i; change(a,5); for(int i=0;i<=4;i++) printf("\n %d", a[i]); } change(int *b,int n) { int i; for(i=0;i
A.2,4 6,8 10
B.7,9,11,13,15
C.5,7,9,11,13
D.3,5,7,9,11
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Explanation
15.main() { int i; float *pf; pf = (float *)&i; *pf = 100.00; printf("n %d", i);}
A.Some Integer not 100
B.100
C.Runtime error.
D.0
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16.main() { int i, j, *p; i = 25; j = 100; p = &i; printf("%f", i/(*p) ); }
A.Compile erro
B.1.00000
C.Runtime error.
D.0.00000
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17.main() { int i, j; scanf("%d %d"+scanf("%d %d", &i, &j)); printf("%d %d", i, j); }
A.Compile error
B.0, 0
C.Runtime error.
D.the first two values entered by the user.
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18.struct Foo { char *pName; }; main() { struct Foo *obj = malloc(sizeof(struct Foo)); clrscr(); strcpy(obj->pName,"Your Name"); printf("%s", obj->pName); }
A.Name
B.compile error
C.Your Name
D.Runtime error
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19.In the following code, in which order the functions would be called? x = f1(23,14)*f2(12/4)+f3();
A.f1, f2, f3
B.f3, f2, f1
C.The order may vary from compiler to compiler
D.None of the above
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20.What is the equivalent pointer expression for referring the same element a[i][j][k][l]?
A.*(*(*(*(a+l)+k)+j))
B.*(*(*(*(a+i)+j)+k)+l)
C.*(*(*(*(a+l)+k)+j)i)
D.None of the above
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Author Does Not claim of any answer these answers are as per expert opinion


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