Submission #797425

#	Time	Username	Problem	Language	Result	Execution time	Memory
797425		Johann	L-triominoes (CEOI21_ltriominoes)	C++14	7 / 100	1 ms	340 KiB

ltrominoes

#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef vector<int> vi;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

ll W, H, K;

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

    cin >> W >> H >> K;
    if (K == 0)
    {
        bool possible = false;
        if (H * W % 3 == 0)
        {
            vi dim;
            dim.push_back(H), dim.push_back(W);
            for (int i = 0; i < 2; ++i)
            {
                ll x = dim[i], y = dim[i ^ 1];
                if (x % 2 == 0)
                    possible |= (y % 3) == 0;
                if (x % 3 == 0)
                    possible |= (y % 2) == 0;
                if (x % 6 == 0)
                    possible |= true;

                if (H * W % 2 == 1)
                {
                    if (min(H, W) >= 5)
                        possible = true;
                }
            }
        }

        if (possible)
            cout << "YES\n";
        else
            cout << "NO\n";
    }

    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 7 / 7
• Subtask 3: 0 / 11
• Subtask 4: 0 / 17
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20