Submission #881267

#	Time	Username	Problem	Language	Result	Execution time	Memory
881267		votranngocvy	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	213 ms	20884 KiB

jobs

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

#define pii pair<int,int>
#define fi first
#define se second
const int N = 1e5 + 5;
const int M = 1e6 + 5;
vector<int>vec[N];
pii a[M];
int n,d,m;

bool check(int val) {
    int day = 0,cnt = 0;
    for (int i = 1; i <= m; i++) {
        if (cnt == val) day++,cnt = 0;
        if (day < a[i].fi) day = a[i].fi,cnt = 0;
        if (day > a[i].fi && day - a[i].fi > d) return false;
        cnt++;
    }
    if (day > n) return false;
    return true;
}

int tknp(int l,int r) {
    int ans = r + 1;
    while (l <= r) {
        int mid = (l + r) / 2;
        if (check(mid)) ans = min(ans,mid),r = mid - 1;
        else l = mid + 1;
    }
    return ans;
}

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> d >> m;
    for (int i = 1; i <= m; i++) {
        cin >> a[i].fi;
        a[i].se = i;
    }
    sort(a + 1,a + m + 1);
    int ans = tknp(1,m);
    cout << ans << "\n";
    int day = 0,cnt = 0;
    for (int i = 1; i <= m; i++) {
        if (cnt == ans) day++,cnt = 0;
        if (day < a[i].fi) day = a[i].fi,cnt = 0;
        vec[day].push_back(a[i].se);
        cnt++;
    }
    for (int i = 1; i <= n; i++) {
        for (auto x: vec[i]) cout << x << " ";
        cout << 0 << "\n";
    }
}

• Subtask 1: 100 / 100