Ðåøåíèå íà çàäà÷à 4
A1A2 … An-1An
+
B1B2 … Bn-1 Bn
D1D2 … Dn-1 Dn
Di = (Ci+Ai+Bi) mod 10
Ci+1 = (Ci+ Ai+Bi) div 10
Cn = 0
Cn-1
...
C2
C1 = 0
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