In many editorial i found the dsu. what is the meaning of dsu??
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disjoint set union
check this great article :)
LooOoOoLOoOoOooOoooOLooOooOooL. LMAO. ROFL. 4 years ago... I am sure the OP figured it out.
xD
Nah the OP's got patience
Democratic Soviet Union.