Project Euler Problem 13 Statement

Work out the first ten digits of the sum of the following one-hundred 50-digit numbers.

37107287533902102798797998220837590246510135740250
46376937677490009712648124896970078050417018260538
… {data continues}

Solution

Summing a set of 50–digit numbers uses Python’s intrinsic arbitrary–precision integers and arithmetic.

N is read first and then N lines are read from input as strings and converted to integers. The integers are summed, and the sum converted to a string and the first 10 characters of the sum are printed.

print(str(sum(int(input()) for _ in range(int(input()))))[:10])	

HackerRank version

Solves all test cases for Hackerrank Project Euler Problem 13

HackerRank Project Euler 13 increases the quantity of 50–digit numbers from 100 to 1,000. No changes are required.

Last Word

I'm fully aware that the intention was to use some Cold War era technology to solve this. I am inherently lazy and this suited me quite well. I'm sure there are other legacy solutions out there that are more clever than this.