Submission #467268

#	Time	Username	Problem	Language	Result	Execution time	Memory
467268		BlancaHM	Poi (IOI09_poi)	C++14	100 / 100	781 ms	23828 KiB

poi

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

vector<int> points, solutionsPerProblem, problemsSolved;

bool comp(int i, int j) {
	// comparator to sort players according to the rules
	if (points[i] > points[j])
		return true;
	else if (points[i] < points[j])
		return false;
	else if (problemsSolved[i] > problemsSolved[j])
		return true;
	else if (problemsSolved[i] < problemsSolved[j])
		return false;
	return i < j;
}

void sortPlayers(vector<vector<int>> & table, vector<int> & players) {
	int T = (int) table[0].size(), N = (int) players.size();
	for (int i = 0; i < T; i++) {
		for (int j = 0; j < N; j++)
			solutionsPerProblem[i] += table[j][i];
	}
	for (int i = 0; i < N; i++) {
		for (int j = 0; j < T; j++) {
			if (table[i][j]) {
				points[i] += (N-solutionsPerProblem[j]);
				problemsSolved[i]++;
			}
		}
	}

	sort(players.begin(), players.end(), comp);
}

int main() {
	int N, T, P;
	cin >> N >> T >> P;
	vector<vector<int>> table(N, vector<int>(T));
	vector<int> players(N);
	points.assign(N, 0);
	problemsSolved.assign(N, 0);
	solutionsPerProblem.assign(T, 0);
	for (int i = 0; i < N; i++) {
		players[i] = i;
		for (int j = 0; j < T; j++) {
			cin >> table[i][j];
		}
	}

	sortPlayers(table, players);

	for (int i = 0; i < N; i++) {
		if (players[i] == P-1) {
			cout << points[P-1] << " " << i+1 << "\n";
			break;
		}
	}
	return 0;
}

• Subtask 1: 100 / 100