Problem Link:   https://lightoj.com/problem/help-hanzo Hints:   Here i just implement  basic Segmented Sieve    Solution in C++:   ///La i...

  Problem Link:   https://codeforces.com/contest/1686/problem/B   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bi...

  Problem Link:   https://codeforces.com/contest/1686/problem/A   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bi...

  Problem Link:   https://www.codechef.com/START40C/problems/XORR   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******...

  Problem Link:  https://www.codechef.com/START40C/problems/INFINITY   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///***...

 Problem Link:  https://www.codechef.com/START40C/problems/DISCOUNTT Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///*****...

  Problem Link:   https://www.codechef.com/START40C/problems/RATINGINPRAC Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///...

   Problem Link:  https://www.codechef.com/problems/GCDQ   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismillah...

 Problem Link:   https://codeforces.com/contest/1682/problem/B   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bis...

Problem Link:  https://codeforces.com/contest/1682/problem/A   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismi...

  Problem Link:   https://codeforces.com/contest/1684/problem/B Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bism...

Problem Link:  https://codeforces.com/contest/1684/problem/A   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismi...

Problem Link:  https://onlinejudge.org/index.php?option=onlinejudge&Itemid=8&page=show_problem&problem=3671   Solution in C++:  ...

 Problem Link:  https://www.spoj.com/PTIT/problems/CPPLCM01/ Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismill...

Problem Link:  https://www.spoj.com/PTIT/problems/CPPLCM04/    Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismi...

Problem Link:   https://lightoj.com/problem/digits-of-factorial   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bi...

Problem Link :  10539 - Almost Prime Numbers   Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismillahir-Rahmanir-...

 Problem Link:   https://codeforces.com/contest/1676/problem/E Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bismi...

  Problem Link:   https://codeforces.com/contest/1676/problem/D Solution in C++:   ///La ilaha illellahu muhammadur rasulullah ///******Bism...