제출 #624339

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
624339		dqhungdl	Red-blue table (IZhO19_stones)	C++17	100 / 100	34 ms	2208 KiB

stones

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

#ifdef DEBUG
#include "debug.hpp"
#define debug(x...) cerr << "[" << #x << "] = [", _print(x)
#else
#define debug(x...)
#endif

typedef pair<int, int> ii;
const int MAX = 1005;
int T, m, n;
ii C[MAX];
char a[MAX][MAX];

void solve() {
    cin >> m >> n;
    bool flipped = false;
    if (m < n) {
        flipped = true;
        swap(m, n);
    }
    for (int i = 1; i <= m; i++) {
        C[i] = {n, i};
        for (int j = 1; j <= n; j++)
            a[i][j] = '+';
    }
    int rs = m;
    for (int j = 1; j <= n; j++) {
        sort(C + 1, C + m + 1, greater<>());
        bool valid = true;
        for (int i = 1; i <= m / 2 + 1 && valid; i++)
            if (C[i].first - 1 > n / 2) {
                a[C[i].second][j] = '-';
                C[i].first--;
            } else
                valid = false;
        rs += valid;
    }
    cout << rs << '\n';
    if (flipped) {
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= m; j++)
                cout << (a[j][i] == '+' ? '-' : '+');
            cout << '\n';
        }
    } else {
        for (int i = 1; i <= m; i++) {
            for (int j = 1; j <= n; j++)
                cout << a[i][j];
            cout << '\n';
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
#ifdef DEBUG
    freopen("../_input", "r", stdin);
#endif
    cin >> T;
    while (T--)
        solve();
}

• Subtask 1: 17 / 17
• Subtask 2: 10 / 10
• Subtask 3: 16 / 16
• Subtask 4: 11 / 11
• Subtask 5: 15 / 15
• Subtask 6: 31 / 31