The above question has multiple choices as below
<span>A. Data links
B. The post office
C. Driving a car
D. A train
The answer is (B) The Post Office.
In layman’s terms, transport layer is similar to the post office functions of delivering parcels and letters at the agreed delivery deadlines. It also notices any dropped info and re-transmits it.
Just like the post office, the transport layer directs messages and information between specific end users. If by mistake you write a letter to the wrong person, the letter will be returned and the postal employee will stamp it as address unknown.
</span>
Answer:
#include <iostream>
#include <map>
using namespace std;
int main()
{
map<int, int> numbers;
cout << "Enter numbers, 0 to finish" << endl;
int number;
while (true) {
cin >> number;
if (number == 0) break;
numbers[number]++;
}
for (pair<int, int> element : numbers) {
std::cout << element.first << ": occurs " << element.second << " times" << std::endl;
}
}
Explanation:
One trick used here is not to keep track of the numbers themselves (since that is not a requirement), but start counting their occurrances right away. An STL map< > is a more suitable construct than a vector< >.
Answer:
The statement is written in Java.
- System.out.printf("%.5f %.5f %.5f",a,b,c);
Explanation:
Presume that there are three variable a, b and c which have already been declared and initialized with 4.014268319, 14309, 0.00937608 respectively.
To print each of the value with 5 digits to the right of the decimal point, we can use printf() method. We create a format specifier %.5f which is a placeholder of a floating point value. The .5 will specify five digits to the right of the decimal point.
We just create three similar format specifiers ( one for variable a, b, and c, respectively) and include them into printf() method. This will print the output as follows:
4.01427 14309.00000 0.00938
