Submission #1091097

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091097		andro	Job Scheduling (CEOI12_jobs)	C++17	0 / 100	94 ms	8176 KiB

jobs

#include <bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int m, d, n;
    cin >> m >> d >> n;
    vector<int> a(n + 1);
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    sort(a.begin() + 1, a.end());
    int l = 1, r = n, ans = - 1;
    vector<int> br(m + 1, 0);
    for(int i = 1; i <= n; i++) {
        br[a[i]] += 1;
    }
    while(l <= r) {
        int mid = (l + r) / 2;
        int p = 1;
        int ok = 1;
        int t = a[p];
        int koji = 1;
        vector<int> posetio(m + 1, 0);
        while(p <= n) {
            if(posetio[a[p]]) {
                p += 1;
                continue;
            }
            posetio[a[p]] = 1;
            int treba = br[a[p]] / mid;
            if(br[a[p]] % mid) {
                treba += 1;
            }
            if(treba > d) {
                ok = 0;
                break;
            }
            p += 1;
        }
        if(ok) {
            r = mid - 1;
            ans = mid;
        }
        else {
            l = mid + 1;
        }
        for(int i = 0; i <= m; i++) {
            posetio[i] = 0;
        }
    }
    cout << ans;
}
/*
8 2 12
1 2 4 2 1 3 5 6 2 3 6 4
*/

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:24:13: warning: unused variable 't' [-Wunused-variable]
   24 |         int t = a[p];
      |             ^
jobs.cpp:25:13: warning: unused variable 'koji' [-Wunused-variable]
   25 |         int koji = 1;
      |             ^~~~

• Subtask 1: 0 / 100