Submission #1134672

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134672		saidpon	Naval battle (CEOI24_battle)	C++17	30 / 100	411 ms	39248 KiB

Main

#include <bits/stdc++.h>
#define nemeshay ios_base::sync_with_stdio(NULL), cin.tie(0), cout.tie(0);
#define int long long
#define sigma signed
#define pb push_back
#define pii pair<int, int>
#define fr first
#define sc second
using namespace std;
const int N = 2e5 + 2, inf = 1e18 + 7;
pair<pii, pair<char, int>> a[N];
sigma main() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i].fr.fr >> a[i].fr.sc >> a[i].sc.fr;
        a[i].sc.sc = i;
    }
    set <int> ans;
    sort(a + 1, a + n + 1);
    map <int, vector<int>> pon;
    for (int i = 1; i <= n; i++) ans.insert(i), pon[a[i].fr.fr + a[i].fr.sc].pb(i);
    for (auto j: pon) {
        vector <int> ok;
        for (auto i: j.sc) {
            if (ok.size() && a[i].sc.fr == 'S' && a[ok.back()].sc.fr == 'E') ans.erase(a[ok.back()].sc.sc), ans.erase(a[i].sc.sc), ok.pop_back();
            else ok.pb(i);
        }
    }
    for (auto j: ans) cout << j << endl;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 6
• Subtask 2: 0 / 12
• Subtask 3: 0 / 8
• Subtask 4: 0 / 11
• Subtask 5: 0 / 9
• Subtask 6: 30 / 30
• Subtask 7: 0 / 24