Binary Mess

CodeChefOpen on judge ↗

Binary the computer and Chef are best friends. Binary loves messing around with Chef. Lately, Chef has been studying bitwise XOR operation. Binary wants to confuse Chef. So when Chef enters an array $A$ of $N$ integers indexed from $i$ $=$ $1$ to $N$, Binary outputs the minimum number of operations needed to make the XOR sum of the $N$ integers minimum. Since Binary is capable of selecting only a

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