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preprocessor-solution.cpp
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preprocessor-solution.cpp
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#include <iostream>
#include <vector>
#include <limits>
#define toStr(s) #s
#define io(container) std::cin >> container
#define INF std::numeric_limits<int>::max()
#define FUNCTION(funcName, comparator) constexpr auto funcName(int & value, int const& toCompareWith) noexcept -> void { \
if (toCompareWith comparator value) value=toCompareWith;}
#define foreach(container, index) for (auto index = std::size_t{0}; index < container.size(); ++index)
//can NOT change any macro name below
#if !defined toStr || !defined io || !defined FUNCTION || !defined INF
#error Missing preprocessor definitions
#endif
FUNCTION(minimum, <)
FUNCTION(maximum, >)
int main(){
auto n = int{};
std::cin >> n;
auto v = std::vector<int>(n);
foreach(v, i) {
io(v)[i];
}
auto mn = int{INF};
auto mx = int{-INF};
foreach(v, i) {
minimum(mn, v[i]);
maximum(mx, v[i]);
}
auto ans = int{mx - mn};
std::cout << toStr(Result =) <<' '<< ans;
return 0;
}