Numbers
- What is the default operation of adjacent_difference function in numeric library?
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NA
Correct Option: C
The default operation is to calculate the difference, but some other operation can be specified as binary operator instead.
- Which operator is used to produce a certain number in a specific range?
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NA
Correct Option: C
In C++, modulo operator is denoted by %.
- What is the output of this program?
#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int main()
{
srand((unsigned)time(0));
int ran;
int L = 11, H = 100;
int R = (H - L) + 1;
for(int k = 0; k < 1; k++)
{
ran = L + int(R * rand() / (RAND_MAX + 1.0));
cout << ran << endl;
}
}
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NA
Correct Option: B
In this program, We have generated a certain random number by using the above formula.
- What is the output of this program?
#include <cstdlib>
#include <ctime>
#include <iostream>
using namespace std;
int main()
{
srand((unsigned)time(0));
int num;
for (int k = 0; k < 2; k++)
{
num = (rand() % 10) + 1;
cout << num;
}
}
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NA
Correct Option: D
In this program, It will produce two numbers from 1 to 20 by using srand function.
- What is the output of this program?
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main ()
{
srand (time(NULL));
printf ("Random number is: %d\n", rand() % 50);
srand (1);
return 0;
}
-
View Hint View Answer Discuss in Forum
NA
Correct Option: A
This program will create a random number based on time function using srand function.
