Editorial for DMOPC '17 Contest 4 P0 - Catch - Olympiads Online Judge

Editorial for DMOPC '17 Contest 4 P0 - Catch

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Author: Kirito

The distance formula for two points $A$ ~A~ and $B$ ~B~ is $\sqrt{(A_x-B_x)^2 + (A_y-B_y)^2}$ ~\sqrt{(A_x-B_x)^2 + (A_y-B_y)^2}~. Squaring this, we obtain $(A_x-B_x)^2 + (A_y-B_y)^2$ ~(A_x-B_x)^2 + (A_y-B_y)^2~. Thus the answer is the minimum value of this across all possible pairings of Alice, Bob, and Charlie.

Time Complexity: $\mathcal O(1)$ ~\mathcal O(1)~

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