Submission #1290341

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290341		cjspd_oly	Trading (IZhO13_trading)	C++17	100 / 100	109 ms	7684 KiB

trading

#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;

using pii = pair<int, int>;
using vii = vector<pii>;
using vvii = vector<vii>;

using l = long long;
using vl = vector<l>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;

using pll = pair<l, l>;
using vll = vector<pll>;
using vvll = vector<vll>;

using d = double;
using vd = vector<d>;
using vvd = vector<vd>;
using vvvd = vector<vvd>;

using ld = long double;
using vld = vector<ld>;
using vvld = vector<vld>;
using vvvld = vector<vvld>;

using vb = vector<bool>;
using vvb = vector<vb>;
using pbb = pair<bool, bool>;
using vbb = vector<pbb>;

#define ff first
#define ss second

#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) (int)(x).size()

void setIO(string name = "")
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if (!name.empty())
    {
        (void)freopen((name + ".in").c_str(), "r", stdin);
        (void)freopen((name + ".out").c_str(), "w", stdout);
    }
}

const ld pi = 3.14159265358979323846;

const l LINF = 1e18;
const l INF = 1e9;

const l MOD = 1e9 + 7;
// const l MOD = 998244353;

const l MAXN = 2e5 + 5;

void solve()
{
    int n, m;
    cin >> n >> m;

    vector<pair<pii, int>> v(m);
    for (int i = 0,a, b, x; i < m&&cin >> a >> b >> x; ++i)
        v[i] = {{a - 1, b - 1}, x - (a-1)};

    sort(all(v));

    vi res(n);

    priority_queue<pii> q; // {x,b}
    
    int idx = 0;
    for (int i = 0; i < n; ++i)
    {
        while (idx < v.size())
            if (v[idx].first.first <= i)
                q.push({v[idx].second, v[idx].first.second}),
                    ++idx;
            else
                break;

        while (q.size())
            if (q.top().second < i)
                q.pop();
            else
                break;

        if (q.size())
            res[i] = q.top().first + i;
    }

    for (auto x : res)
        cout << x << " ";
}

int main()
{
    setIO("");

#ifndef ONLINE_JUDGE
    // setIO("filename");
#endif

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

    return 0;
}

Compilation message (stderr)

trading.cpp: In function 'void setIO(std::string)':
trading.cpp:52:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         (void)freopen((name + ".in").c_str(), "r", stdin);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trading.cpp:53:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |         (void)freopen((name + ".out").c_str(), "w", stdout);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100