Interesting homework

CodeChefOpen on judge ↗

Interesting homework from school. One day Nobita got homework from his school. In homework he has given a 2D matrix A of N x M and an integer X. The task for Nobita is to calculate the number of pair of blocks of matrix A such that the sum of the values in pair of blocks is equal to X i.e Ai1 , j1 + Ai2 , j2 = X and both the value should be different i.e Ai1 , j1 ≠ Ai2 , j2. The task is diffic

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