Submission #796352

#	Time	Username	Problem	Language	Result	Execution time	Memory
796352		vjudge1	Team Contest (JOI22_team)	C++17	100 / 100	82 ms	6280 KiB

team

#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 150150;

struct chel{
    int x, y, z;
};

bitset < N > is_del;

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, m = 0;
    cin >> n;
    vector < chel > V(n);
    vector < pair < int, int > > X(n), Y(n), Z(n);
    for(auto &[x, y, z] : V) {
        cin >> x >> y >> z;
        X[m] = {x, m};
        Y[m] = {y, m};
        Z[m] = {z, m};
        ++ m;
    }
    sort(X.begin(), X.end());
    sort(Y.begin(), Y.end());
    sort(Z.begin(), Z.end());
    is_del.reset();
    for(int x, y, z;;) {
        for(; !X.empty() && is_del[X.back().second]; X.pop_back());
        for(; !Y.empty() && is_del[Y.back().second]; Y.pop_back());
        for(; !Z.empty() && is_del[Z.back().second]; Z.pop_back());
        if(X.empty() || Y.empty() || Z.empty()) {
            break;
        }
        x = X.back().second;
        if(V[x].y == Y.back().first || V[x].z == Z.back().first) {
            is_del[x] = true;
            continue;
        }
        y = Y.back().second;
        if(V[y].x == X.back().first || V[y].z == Z.back().first) {
            is_del[y] = true;
            continue;
        }
        z = Z.back().second;
        if(V[z].x == X.back().first || V[z].y == Y.back().first) {
            is_del[z] = true;
            continue;
        }
        cout << X.back().first + Y.back().first + Z.back().first;
        return 0;
    }
    cout << -1;
} 

Compilation message (stderr)

team.cpp:20:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   20 | main() {
      | ^~~~

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