Submission #1798922

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Source Code Expand

#include <iostream>
#include <set>

using namespace std;

int main()
{
    size_t n;
    set<int> s;

    cin >> n;
    for (auto i = 0u; i < n; ++i) {
        int a;
        cin >> a;
        s.insert(a);
    }

    auto j = end(s);
    --j;
    --j;

    cout << *j << endl;

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:15: error: ‘i’ does not name a type
     for (auto i = 0u; i < n; ++i) {
               ^
./Main.cpp:12:23: error: expected ‘;’ before ‘i’
     for (auto i = 0u; i < n; ++i) {
                       ^
./Main.cpp:12:23: error: ‘i’ was not declared in this scope
./Main.cpp:18:10: error: ‘j’ does not name a type
     auto j = end(s);
          ^
./Main.cpp:19:7: error: ‘j’ was not declared in this scope
     --j;
       ^