Submission #423773

#	Time	Username	Problem	Language	Result	Execution time	Memory
423773		haxorman	Poi (IOI09_poi)	C++14	100 / 100	340 ms	16032 KiB

poi

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

const int mxN = 2007;

int tasks[mxN], solved[mxN][mxN];
pair<int,pair<int,int>> points[mxN];

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n, t, p;
    cin >> n >> t >> p;

    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= t; ++j) {
            cin >> solved[i][j];

            if (!solved[i][j])
                tasks[j]++;
        }
    }

    for (int i = 1; i <= n; ++i) {
        int cur = 0, cnt = 0;
        for (int j = 1; j <= t; ++j) {
            if (solved[i][j]) {
                cnt++;
                cur += tasks[j];
            }
        }
        points[i] = {cur, {cnt, i}};
    }
    sort(points + 1, points + n + 1, greater<pair<int,pair<int,int>>>());

    bool ok = false;
    while (!ok) {
        ok = true;
        for (int i = 2; i <= n && ok; ++i) {
            if (points[i].first == points[i - 1].first &&
                points[i].second.first == points[i - 1].second.first &&
                points[i].second.second < points[i - 1].second.second) {

                swap(points[i], points[i - 1]);
                ok = false;
            }
        }
    }

    for (int i = 1; i <= n; ++i) {
        auto cur = points[i];
        if (points[i].second.second == p) {
            cout << points[i].first << ' ' << i << "\n";
            break;
        }
    }
}

Compilation message (stderr)

poi.cpp: In function 'int32_t main()':
poi.cpp:51:14: warning: variable 'cur' set but not used [-Wunused-but-set-variable]
   51 |         auto cur = points[i];
      |              ^~~

• Subtask 1: 100 / 100