Submission #1134350

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134350		saidpon	Naval battle (CEOI24_battle)	C++20	12 / 100	3096 ms	4972 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 fr first
#define sc second
#define pii pair<int, int>
using namespace std;
const int N = 1e6 + 2, inf = 1e18 + 7;
pair<pii, char> a[N];
int used[N];
sigma main() {
    int n;
    cin >> n;
    for (int i = 0; i < n; i++) cin >> a[i].fr.fr >> a[i].fr.sc >> a[i].sc;
    int q = 200;
    while (q--) {
        for (int i = 0; i < n; i++) {
            if (used[i]) continue;
            if (a[i].sc == 'N') a[i].fr.sc--;
            else if (a[i].sc == 'S') a[i].fr.sc++;
            else if (a[i].sc == 'W') a[i].fr.fr--;
            else a[i].fr.fr++;
        }
        for (int i = 0; i < n; i++) {
            if (used[i]) continue;
            for (int j = i + 1; j < n; j++) {
                if (!used[j] && a[i].fr.fr == a[j].fr.fr && a[i].fr.sc == a[j].fr.sc) {
                    used[i] = 1, used[j] = 1;
                }
            }
        }
    }
    for (int i = 0; i < n; i++) if (!used[i]) cout << i + 1 << endl;
}

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