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After Governor's attack on prison, Rick found himself surrounded by walkers. They are coming towards him from all sides. Now, suppose Rick have infinite number of bullets with him. Suppose Rick need 1 bullet to kill each walker (yeah he is good in killing walkers. They need to be shot at head. See, how good he is). Now as soon as he kills 1 walker rest of the walkers move forward by 1 m. There are

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solution.cppC++17

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