Submission #1054855

#	Time	Username	Problem	Language	Result	Execution time	Memory
1054855		j_vdd16	Team Contest (JOI22_team)	C++17	17 / 100	2096 ms	612 KiB

team

#include <algorithm>
#include <bitset>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <limits.h>
#include <math.h>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

//#define int long long
#define loop(X, N) for(int X = 0; X < (N); X++)
#define all(V) V.begin(), V.end()
#define rall(V) V.rbegin(), V.rend()

using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<bool> vb;
typedef vector<vector<bool>> vvb;


int getMax(int* data, int size) {
    bool isSame = false;
    int best = 0;
    for (int i = 1; i < size; i++) {
        if (data[i] > data[best]) {
            best = i;
            isSame = false;
        }
        else if (data[i] == data[best])
            isSame = true;
    }

    if (isSame) return -1;

    return best;
}

struct Beaver {
    int x = 0, y = 0, z = 0;

    bool operator<(const Beaver& b) const {
        return x > b.x || (x == b.x && y > b.y) || (x == b.x && y == b.y && z > b.z);
    }
    bool operator==(const Beaver& b) const {
        return x == b.x && y == b.y && z == b.z;
    }
};

bool compY(const Beaver& a, const Beaver& b) {
    return a.y > b.y || (a.y == b.y && a.z > b.z);
}

signed main() {
    int n;
    cin >> n;

    set<Beaver> beaverSet;
    vector<Beaver> beavers;
    loop(i, n) {
        int x, y, z;
        cin >> x >> y >> z;

        beaverSet.insert(Beaver{x, y, z});
    }

    for (auto beaver : beaverSet) beavers.push_back(beaver);
    n = (int)beavers.size();

    int bestScore = -1;
    int jStart = 1;

    int prevX = -1;
    int i = 0;
    while (i < n) {
        while (jStart < n && beavers[i].x <= beavers[jStart].x) jStart++;

        const Beaver& beaver1 = beavers[i];

        // vector<Beaver> beaversLeft;
        // for (int j = jStart; j < n; j++) beaversLeft.push_back(beavers[j]);

        // sort(all(beaversLeft));
       
        for (int j = jStart; j < n; j++) {
            for (int k = j + 1; k < n; k++) {
                if (beavers[j].y == beavers[k].y) continue;

                int x[3] = { beavers[i].x, beavers[j].x, beavers[k].x };
                int y[3] = { beavers[i].y, beavers[j].y, beavers[k].y };
                int z[3] = { beavers[i].z, beavers[j].z, beavers[k].z };

                int maxX = 0;
                int maxY = getMax(y, 3);
                int maxZ = getMax(z, 3);

                if (maxX == maxY || maxX == maxZ || maxY == maxZ || maxX == -1 || maxY == -1 || maxZ == -1) continue;

                bestScore = max(bestScore, beaver1.x + y[maxY] + z[maxZ]);
            }
        }

        prevX = beavers[i].x;
        i++;
        //while (i < n - 1 && beavers[i].x == prevX && (beavers[i + 1].y <= beavers[i].y && beavers[i + 1].z <= beavers[i].z)) i++;
    }

    std::cout << bestScore << endl;

    return 0;
}

Compilation message (stderr)

team.cpp: In function 'int main()':
team.cpp:99:21: warning: unused variable 'x' [-Wunused-variable]
   99 |                 int x[3] = { beavers[i].x, beavers[j].x, beavers[k].x };
      |                     ^
team.cpp:83:9: warning: variable 'prevX' set but not used [-Wunused-but-set-variable]
   83 |     int prevX = -1;
      |         ^~~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 29
• Subtask 3: 9 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 27