<u> C++ Program to Print Pascal's Triangle</u>
#include<iostream>
//header file
using namespace std;
//driver function
int main()
{
int r;/*declaring r for Number of rows*/
cout << "Enter the number of rows : ";
cin >> r;
cout << endl;
for (int a = 0; a < r; a++)
{
int value = 1;
for (int b = 1; b < (r - a); b++)
/*Printing the indentation space*/
{
cout << " ";
}
for (int c = 0; c <= a; c++)
/*Finding value of binomial coefficient*/
{
cout << " " << value;
value = value * (a - c) / (c + 1);
}
cout << endl << endl;
}
cout << endl;
return 0;
}
<u>Output</u>
<u>Enter the number of rows : 5</u>
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
In python the input() function prompts the user to enter information.
Answer:
802.11ac
Explanation:
It is a wireless networking standard.It functions only on 5 Ghz only. 802.11ac has three times the bandwidth of 802.11n hence it can handle more number of users.It has multi-link throughput of 1 gigabit per second.It provides high throughput.It is very useful for environments with high user density.
Answer:
The answer is "Option D".
Explanation:
Trojan program is a malicious code that is also known as a virus. It is a rootkit, that aims to infect the computer to hide or obscure an object. These programs are mainly used to download additional content, such as additional pieces of malware, to the infected computer, and other options are wrong that can be defined as follows:
- In option A, It is not correct, this option infects the system.
- In option B, It is used for infects another computer that's why it is incorrect.
- In option C, It is incorrect because it is used in cybersecurity.
Answer:
Explanation:
iname=input("Enter the file name: ")
inputfile=open(iname,'r')
lines=[]
for line in inputfile:
lines.append(line)
inputfile.close()
print("The file has ",len(lines)," lines")
while True:
linenumber=int(input("Enter the line number or 0 to quit: "))
if linenumber==0:
break
elif linenumber > len(lines):
print("Error: line number must be less than ", len(lines))
else:
print(linenumber, " : ", lines[linenumber - 1])