Submission #1134283

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134283		aliarapov	Naval battle (CEOI24_battle)	C++20	30 / 100	140 ms	25216 KiB

Main

#include <bits/stdc++.h> 
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std; 
using namespace __gnu_pbds;

#define int long long
#define all(x) x.begin(),x.end() 
#define rall(x) x.rbegin(),x.rend()
           
template<class T, class U> inline bool chmin(T& a, const U& b) { if (a > b) { a = b; return true; } return false; }
template<class T, class U> inline bool chmax(T& a, const U& b) { if (a < b) { a = b; return true; } return false; } 

template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
template <typename T>
using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;     

void solve() {
    int n;
    cin >> n;
    map<int, vector<tuple<int, bool, int> > > mp;
    for (int i = 0; i < n; i++) {
        int x, y;
        string dir;
        cin >> x >> y >> dir;
        mp[x + y].push_back({x, dir[0] == 'S', i + 1});
    }
    vector<int> ans;
    for (auto [sum, v] : mp) {
        vector<int> c;
        sort(all(v));
        for (auto [x, ty, ind] : v) {
            if (ty == 0) c.push_back(ind);
            else {
                if (c.empty()) ans.push_back(ind);
                else c.pop_back();
            }
        }
        for (int i : c) ans.push_back(i);
    }
    for (int i : ans) cout << i << '\n';
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    int t = 1;
    //cin >> t;
    while(t--){
        solve();
    }
}

• 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