Technical Questions asked in Genpact

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What happens when the following piece of code in file1.c, is compiled and executed?
namespace
{
Class Temp
{
public:
int GetVal()
{
return 100;
}
};
} //end of namespace
int main()
{
Temp oTempObj1; Cout< }
1. Compile Error
2. 100
3. Runtime Error
4. Compilation Error
Answer: Option B.
Iterators are________________
1. Generalised pointers in STL
2. Container classes in STL
3. Algorithms in STL
4. Special Methods in STL
Answer: Option A.

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Big O notation is defined for
1. Time and Space Complexity
2. Optimality
3. Searching
4. Sorting
Answer: Option A.
The effectiveness of an algorithm is best stated in
1. Best-case Time
2. Average-case Time
3. Worst-Case running time
4. Industry-Standard Time
Answer: Option C.
output of following program
#include<stdio.h>
int f1( int );
void main()
{
int b=5;
printf("%d,%d", f1(b),f1(b));
}
int f1(int b)
{
static int n=5;
n++;
return n;
}
1. 6,6
2. 6,7
3. 7,6
4. 5,6
Answer: Option C.
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int * ptr=(int *) realloc(NULL,100) is same as
1. int *ptr=(int *) malloc(20)
2. int *ptr=(int *) malloc(50)
3. int *ptr=(int *) calloc(25,4)
4. int *ptr=(int *) calloc(20,4)
Answer: Option C.

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