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Submission #742705

# Submission time Handle Problem Language Result Execution time Memory
742705 2023-05-16T18:39:07 Z Jomnoi Job Scheduling (CEOI12_jobs) C++17
0 / 100
 145 ms 10676 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int MAX_M = 1e6 + 10;
 
int N, D, M;
int S[MAX_M], id[MAX_M];
 
bool solve(int mid) {
    int i = 1;
    for(int days = 1; days <= N and i <= M; days++) {
        if(days > S[id[i]] + D) {
            break;
        }
 
        int cnt = mid;
        while(i <= M and S[id[i]] <= days and cnt--) {
            i++;
        }
    }
    return i == M + 1;
}
 
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> N >> D >> M;
    for(int i = 1; i <= M; i++) {
        cin >> S[i];
        id[i] = i;
    }
 
    sort(id + 1, id + M + 1, [&](const int &a, const int &b) {
        return S[a] < S[b];
    });
 
    int l = 1, r = M, ans = -1;
    while(l <= r) {
        int mid = (l + r) / 2;
 
        if(solve(mid) == true) {
            ans = mid;
            r = mid - 1;
        }
        else {
            l = mid + 1;
        }
    }
 
    cout << ans << '\n';
    /*for(int i = 1, j = 1; i <= N; i++) {
        for(int k = 0; j <= M and k < ans; j++, k++) {
            cout << id[j] << ' ';
        }
        cout << "0\n";
    }*/
    return 0;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 1420 KB Unexpected end of file - int32 expected
2 Incorrect 8 ms 1364 KB Unexpected end of file - int32 expected
3 Incorrect 8 ms 1368 KB Unexpected end of file - int32 expected
4 Incorrect 9 ms 1424 KB Unexpected end of file - int32 expected
5 Incorrect 8 ms 1412 KB Unexpected end of file - int32 expected
6 Incorrect 8 ms 1368 KB Unexpected end of file - int32 expected
7 Incorrect 8 ms 1348 KB Unexpected end of file - int32 expected
8 Incorrect 8 ms 1364 KB Unexpected end of file - int32 expected
9 Incorrect 10 ms 1304 KB Unexpected end of file - int32 expected
10 Incorrect 11 ms 1364 KB Unexpected end of file - int32 expected
11 Incorrect 14 ms 1516 KB Unexpected end of file - int32 expected
12 Incorrect 29 ms 2724 KB Unexpected end of file - int32 expected
13 Incorrect 45 ms 3800 KB Unexpected end of file - int32 expected
14 Incorrect 70 ms 5340 KB Unexpected end of file - int32 expected
15 Incorrect 71 ms 6096 KB Unexpected end of file - int32 expected
16 Incorrect 115 ms 7816 KB Unexpected end of file - int32 expected
17 Incorrect 128 ms 9120 KB Unexpected end of file - int32 expected
18 Incorrect 121 ms 9568 KB Unexpected end of file - int32 expected
19 Incorrect 145 ms 10676 KB Unexpected end of file - int32 expected
20 Incorrect 121 ms 9072 KB Unexpected end of file - int32 expected