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HackerRank Euler Problem 002
Link: https://www.hackerrank.com/contests/projecteuler/challenges/euler002/problem If you don’t understand, you can reply in comments. #include <iostream> using namespace std; int main(){ int t; cin >> t; for(int a0 = 0; a0 < t; a0++){ long n; cin >> n; long long int a = 1,b = 2,c = 0, sum = 0; while(b < n) { if(b%2==0) sum+=b; c=a+b; a=b; b=c; } cout << sum << endl; } return 0; }
HackerRank Euler Problem 001
Link: https://www.hackerrank.com/contests/projecteuler/challenges/euler001/problem int main(){ int t; cin >> t; for(int a0 = 0; a0 < t; a0++){ long long int n; cin >> n; n–; long long int sum=0; long long int n3=n/3; long long int n5=n/5; long long int n15=n/15; long long int val3=3*(n3*(n3+1))/2; long long int val5=5*(n5*(n5+1))/2; long long int val15=15*(n15*(n15+1))/2; sum = val3 + val5 – val15; cout<<sum<<endl; } return 0; } If you didn’t get the solution, you can comment here.
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