Submission #849215

#	Time	Username	Problem	Language	Result	Execution time	Memory
849215		quanlt206	Job Scheduling (CEOI12_jobs)	C++14	80 / 100	1008 ms	34168 KiB

jobs

#include<bits/stdc++.h>
#define X first
#define Y second
#define all(x) begin(x), end(x)
#define FOR(i, a, b) for(int i = (a); i <= (b); i++)
#define FORD(i, b, a) for(int i = (b); i >= (a); i--)
#define REP(i, a, b) for (int i = (a); i < (b); i++)
#define mxx max_element
#define mnn min_element
#define SQR(x) (1LL * (x) * (x))
#define MASK(i) (1LL << (i))
#define Point Vector
#define left Left
#define right Right
#define div Div

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ld;
typedef pair<db, db> pdb;
typedef pair<ld, ld> pld;
typedef pair<int, int> pii;
typedef pair<int, pii> piii;
typedef pair<ll, ll> pll;
typedef pair<ll, pll> plll;
typedef pair<ll, int> pli;
typedef pair<ll, pii> plii;

template<class A, class B>
    bool maximize(A& x, B y) {
        if (x < y) return x = y, true; else return false;
    }
template<class A, class B>
    bool minimize(A& x, B y) {
        if (x > y) return x = y, true; else return false;
    }
/* END OF TEMPLATE */

const int N = 1e5 + 7;

vector<pii> query[N];
vector<int> res[N], ans[N];

int n, m, d;

bool check(int x) {
    priority_queue<pii, vector<pii>, greater<pii>> pq;
    FOR(i, 1, n) ans[i].clear();
    FOR(i, 1, n) {
        for (auto x : query[i]) pq.push({x.X, x.Y});
        int m = x;
//        cout<<i<<" "<<pq.size()<<"\n";
        while (m > 0 && !pq.empty()) {
            pii tmp = pq.top();
            pq.pop();
            int r = tmp.X, idx = tmp.Y;
            if (r < i) return false;
            ans[i].push_back(idx);
            m--;
        }
    }
    if (!pq.empty()) return false;
    return true;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin>>n>>d>>m;
    FOR(i, 1, m) {
        int x;
        cin>>x;
        query[x].push_back({x + d, i});
    }
    int d = 1, c = m, g, result = 0;
//    check(1);
//    exit(0);
    while (d <= c) {
        g = (d + c) >> 1;
        if (check(g)) {
            result = g;
            FOR(i, 1, n) res[i] = ans[i];
            c = g - 1;
        }
        else d = g + 1;
    }
    cout<<result<<"\n";
    FOR(i, 1, n) {
        for (auto x : res[i]) cout<<x<<" "; cout<<0<<"\n";
    }
    return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:92:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   92 |         for (auto x : res[i]) cout<<x<<" "; cout<<0<<"\n";
      |         ^~~
jobs.cpp:92:45: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   92 |         for (auto x : res[i]) cout<<x<<" "; cout<<0<<"\n";
      |                                             ^~~~

• Subtask 1: 80 / 100