Submission #314276

#	Time	Username	Problem	Language	Result	Execution time	Memory
314276		BeanZ	Trading (IZhO13_trading)	C++14	100 / 100	201 ms	13924 KiB

trading

// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
const int N = 3e5 + 5;
struct viet{
    ll l, r, x;
    bool operator <(const viet &o) const{
        return l < o.l;
    }
}a[N];
struct lpl{
    ll l, r, x;
    bool operator <(const lpl &o) const{
        return (l - x) > (o.l - o.x);
    }
};
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen("A.inp", "r")){
        freopen("test.inp", "r", stdin);
        freopen("test.out", "w", stdout);
    }
    ll n, m;
    cin >> n >> m;
    for (int i = 1; i <= m; i++){
        cin >> a[i].l >> a[i].r >> a[i].x;
    }
    sort(a + 1, a + m + 1);
    ll now = 1;
    priority_queue<lpl> pq;
    for (int i = 1; i <= n; i++){
        while (now <= m && a[now].l == i){
            lpl x = {a[now].l, a[now].r, a[now].x};
            pq.push(x);
            now++;
        }
        while (pq.size()){
            if (pq.top().r < i) pq.pop();
            else break;
        }
        if (pq.size() == 0) cout << 0 << " ";
        else {
            cout << i - pq.top().l + pq.top().x << " ";
        }
    }
}
/*
*/

Compilation message (stderr)

trading.cpp: In function 'int main()':
trading.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   23 |         freopen("test.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
trading.cpp:24:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   24 |         freopen("test.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100