Submission #1678206

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <utility>

using namespace std;

int H, W;
long long res = 1000000000;

int solve() {
    for (int i = 1; i <= H - 1; ++i) {
        long long min_val, max_val;
        min_val = (long long) i * W;
        max_val = (long long) i * W;

        int separated_width;
        if (W % 2) {
            separated_width = W / 2 + 1;
            min_val = min(min_val, (long long) (H - i) * separated_width);
            max_val = max(max_val, (long long) (H - i) * separated_width);

            min_val = min(min_val, (long long) (H - i) * (W - separated_width));
            max_val = max(max_val, (long long) (H - i) * (W - separated_width));

            res = min(res, max_val - min_val);

            min_val = i * W;
            max_val = i * W;
        }
        separated_width = W / 2;
        min_val = min(min_val, (long long) (H - i) * separated_width);
        max_val = max(max_val, (long long) (H - i) * separated_width);

        min_val = min(min_val, (long long) (H - i) * (W - separated_width));
        max_val = max(max_val, (long long) (H - i) * (W - separated_width));

        res = min(res, max_val - min_val);
    }
}


int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    cin >> H >> W;

    solve();
    swap(&H, &W);
    solve();
    cout << res << endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:49:16: error: no matching function for call to ‘swap(int*, int*)’
     swap(&H, &W);
                ^
In file included from /usr/include/c++/5/bits/stl_pair.h:59:0,
                 from /usr/include/c++/5/bits/stl_algobase.h:64,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from ./Main.cpp:1:
/usr/include/c++/5/bits/move.h:176:5: note: candidate: void std::swap(_Tp&, _Tp&) [with _Tp = int*] <near match>
     swap(_Tp& __a, _Tp& __b)
     ^
/usr/include/c++/5/bits/move.h:176:5: note:   conversion of argument 2 would be ill-formed:
./Main.cpp:49:16: error: invalid initialization of non-const reference of type ‘int*&’ from an rvalue of type ‘int*’
     swap(&H, &W);
                ^
In file included from /usr/include/c++/5/bits/stl_pair.h:59:0,
                 from /usr/...