B. Substring and Subsequence - Educational Codeforces Round 167

[@cp_with_vkd]

My Submission Link : codeforces.com/contest/1989/submission/267765133

[@user-ln7we1vn1j]

Helpful !

[@ShreyaSingh-fz6ho]

Please upload video for D

[@cper-pi2sz]

Thanks please upload for C and D also

[@uddipan7427]

why does the longest common substring approach don't work

[@cp_with_vkd]

please write your approach in brief

[@Sai-ir8yh]

Could u pls tell why this doesnt work?
cin>>a>>b;
ans = a.length();
for(int i=0;i

[@Sai-ir8yh]

i cant think of any test case which doesn't work. so can anyone find out the wrong test case?

[@cp_with_vkd]

In subsequence, order of characters should be maintained....at a glance I think this is the error in the code.. .....as you are using frequency array so there might be error in ordering
I'll try to find the test case tommorow...

[@Sai-ir8yh]

@@cp_with_vkd Thank you, it would be very helpful. Actually all testcases i can think of, pass

[@kohinoor9647]

@@Sai-ir8yh a=cabcefg b=bcaefg answer should be 8 ur code will give wrong answer :)