Help Satya !!

CodeChefOpen on judge ↗

Satyanand's Love for Mathematics is not hidden to anyone. Recently, he studied sequences and feels that he has studied it completely. Shreyansh, a dear friend of Satyanand gives him a sequence. The sequence is as follows: $1, 6, 15, 28, 45, 66, 91, ...$ Also, Shreyansh gives him an integer k and asks him to find the kth element of the sequence. Satyanand is busy doing Compilers lab. Help

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

🔒

L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI