Submission #1169725

#	Time	Username	Problem	Language	Result	Execution time	Memory
1169725		Thanhs	Inspections (NOI23_inspections)	C++20	100 / 100	290 ms	29248 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define name "TENBAI"
#define fi first
#define se second
#define int long long
#define endl '\n'
#define setmin(x, y) x = min((x), (y))
#define setmax(x, y) x = max((x), (y))
#define sqr(x) ((x) * (x))

mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count());
int rand(int l, int r){return l + ((hdp() % (r - l + 1)) + r - l + 1) % (r - l + 1);}

const int inf = 1e18;
const int NM = 2e5 + 5;

int n, m, q, cr, ans[NM];
vector<pair<int, int>> v, Q;
set<array<int, 3>> s;

int f(int l1, int r1, int l2, int r2)
{
    return max(0ll, min(r1, r2) - max(l1, l2) + 1);
}

void solve()
{
    cin >> n >> m >> q;
    for (int i = 1; i <= m; i++)
    {
        int l, r;
        cin >> l >> r;
        vector<array<int, 3>> del, add;
        auto it = s.upper_bound({l, inf, inf});
        if (it != s.begin())
            it = prev(it);
        while (it != s.end() && (*it)[0] <= r)
        {
            int ll = (*it)[0], rr = (*it)[1], tt = (*it)[2];
            if (f(ll, rr, l, r))
            {
                int L = max(l, ll), t1 = tt + L - ll, t2 = cr + L - l;
                v.emplace_back(t2 - t1 - 1, f(ll, rr, l, r));
                del.push_back(*it);
                if (ll < l)
                    add.push_back({ll, l - 1, tt});
                if (rr > r)
                    add.push_back({r + 1, rr, r + 1 - ll + tt});
            }
            it = next(it);
        }
        add.push_back({l, r, cr});
        for (auto t : del)
            s.erase(t);
        for (auto t : add)
            s.insert(t);
        cr += r - l + 1;
    }
    for (int i = 1; i <= q; i++)
    {
        int v;
        cin >> v;
        Q.push_back({v, i});
    }
    sort(v.begin(), v.end());
    sort(Q.begin(), Q.end(), greater<>());
    int sum = 0;
    for (auto t : Q)
    {
        while (v.size() && v.back().fi >= t.fi)
            sum += v.back().se, v.pop_back();
        ans[t.se] = sum;
    }
    for (int i = 1; i <= q; i++)
        cout << ans[i] << ' ';
}

signed main()
{
    if (fopen("in.txt", "r")) 
    {
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
    }
    else if (fopen(name".inp", "r"))
    {
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    int tc = 1; 
    // cin >> tc;
    while (tc--)
        solve();
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:84:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   84 |         freopen("in.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:85:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |         freopen("out.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:89:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:90:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 18 / 18
• Subtask 3: 22 / 22
• Subtask 4: 26 / 26
• Subtask 5: 23 / 23