Submission #1260257

#	Time	Username	Problem	Language	Result	Execution time	Memory
1260257		kawhiet	Poi (IOI09_poi)	C++20	0 / 100	146 ms	16176 KiB

poi

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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m, p;
    cin >> n >> m >> p;
    vector<vector<int>> d(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> d[i][j];
        }
    }
    vector<int> b(m), cnt(n);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cnt[i] += d[i][j];
            b[j] += 1 - d[i][j];
        }
    }
    vector<array<int, 2>> a(n);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            a[i][0] += d[i][j] * b[j];
        }
        a[i][1] = i;
    }
    sort(a.begin(), a.end(), [&](array<int, 2> x, array<int, 2> y) {
        if (x[0] != y[0]) return x[0] > y[0];
        if (cnt[x[1]] != cnt[y[1]]) return cnt[x[1]] > cnt[y[1]];
        return x[1] < y[1];
    });
    for (int i = 0; i < n; i++) {
        if (a[i][1] == p - 1) {
            cout << a[i][0] << ' ' << a[i][1] + 1 << '\n';
        }
    }
    return 0;
}

• Subtask 1: 0 / 100