Finding Teammate

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Snackdown 2019 is coming! Since Snackdown is a contest of teams with up to two members, everyone is looking for a teammate. There are $N$ contestants (numbered $1$ through $N$) who want to participate in Snackdown; let's denote the skill level of the $i$-th contestant by $S_i$. These people want to pair up in $N/2$ teams; each team should consist of two people. Clearly everyone wishes for their t

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solution.cppC++17

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