Question

WAP to find sum s=1*(1*2)+(1*2*3)+.......+(1*2*3*.........*n);

Answer 1

Answer:

// C++ program to find sum of series

#include <iostream>

using namespace std;

// Function to return sum of

// 1/1 + 1/2 + 1/3 + ..+ 1/n

class gfg

{

public : double sum(int n)

{

double i, s = 0.0;

for (i = 1; i <= n; i++)

s = s + 1/i;

return s;

}

};

// Driver code

int main()

{

gfg g;

int n = 5;

cout << "Sum is " << g.sum(n);

return 0;

}

// This code is contributed by SoM15242.

C++ program for finding this....

# Python program to find the sum of series

def sum(n):

i = 1

s = 0.0

for i in range(1, n+1):

s = s + 1/i;

return s;

# Driver Code

n = 5

print("Sum is", round(sum(n), 6))

# This code is contributed by Chinmoy Lenka

python program for finding this......

if want more than ask me here.....

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