36 lines
991 B
C++
36 lines
991 B
C++
#include <cassert>
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#include <iostream>
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#include <limits>
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/* return the second-largest element of an array
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* of N integer values (must contain at least two values)
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*/
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auto second_of(const int N, const int* const x) {
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assert(N >= 2);
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auto largest = x[0];
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// smallest possible int value
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auto second_largest = std::numeric_limits<int>::min();
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for(auto i = 1; i < N; i++)
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if(x[i] > largest) {
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second_largest = largest;
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largest = x[i];
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}
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else if(x[i] > second_largest)
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second_largest = x[i];
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return second_largest;
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}
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int main() {
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constexpr auto fixed_array_size = 5;
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constexpr int x[fixed_array_size] = {4, 0, 6, 5, 2};
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const auto t = second_of(fixed_array_size, x);
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std::cout << t << "\n";
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}
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/*
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Which of these allowed implicit-type declarations would you actually use in programming practice?
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I dont think I would use any of these. Auto takes longer time to write than int and makes the code less readable.
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*/
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