Write a program to print the sum of first thirty odd numbers?

Answer 1

In Python

print(30*30)

Answer 2

int result = 0;
for(int i = 1; i < 60; i+=2)
{result += i;}
std::cout << result;

Answer 3

print((59+1)*15)
it is Gauss

1 + 59 +
3 + 57 +
....

in general

print((i_th odd +1) *(i_th odd + 1) /2)