제출 #671877

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
671877		Alihan_8	거래 (IZhO13_trading)	C++17	100 / 100	267 ms	32180 KiB

trading

#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, q; cin >> n >> q;
    vector <pair<int,bool>> p[n+2];
    while ( q-- ){
        int l, r, x; cin >> l >> r >> x;
        p[l].pb({x-l, true}), p[r+1].pb({x-l, false});
    }
    multiset <int> st;
    for ( int i = 1; i <= n; i++ ){
        for ( auto [val, flag]: p[i] ){
            if ( flag ) st.insert(val);
            else st.erase(st.find(val));
        }
        if ( st.empty() ) cout << "0 ";
        else cout << *st.rbegin()+i << ' ';
    }

    cout << '\n';
}

컴파일 시 표준 에러 (stderr) 메시지

trading.cpp: In function 'void IO(std::string)':
trading.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trading.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100