Update usaco.cpp
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@ -2,7 +2,7 @@
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#include <ext/pb_ds/tree_policy.hpp>
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#include <ext/pb_ds/assoc_container.hpp>
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#include <ext/rope>
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#define io(name) freopen((str(name)+".in").c_str(), "r", stdin), freopen((str(name)+".out").c_str(), "w", stdout)
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#define io(name) if (fopen((str(name)+".in").c_str(), "r")) freopen((str(name)+".in").c_str(), "r", stdin), freopen((str(name)+".out").c_str(), "w", stdout)
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#define f first
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#define s second
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#define mp make_pair
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