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Submission #860679

# Submission time Handle Problem Language Result Execution time Memory
860679 2023-10-13T17:07:11 Z agawron Job Scheduling (CEOI12_jobs) C++14
100 / 100
 279 ms 21228 KB 
#include<iostream>
#include<cstdio>
#include<vector>

using namespace std;

const int MAX_N = 1e5 + 5;

int n, d, m;
vector <int> p[MAX_N], ans[MAX_N];

bool check(int x){
    for(int i = 1; i <= n; i++) ans[i].clear();
    for(int i = 1, idx = 1 ; i <= n; idx = max(idx, ++i)){
        for(int id: p[i]){
            if(ans[idx].size() == x) idx++;
            if(idx > i + d) return 0;
            ans[idx].push_back(id);
        }
    }
    return 1;
}

int main(){
    scanf("%d %d %d", &n, &d, &m);

    for(int i = 0; i < m; i++){
        int x;
        scanf("%d", &x);
        p[x].push_back(i + 1);
    }

    int lo = 1;
    int hi = m;
    int mi;

    while(lo < hi){
        mi = (lo + hi)/2;
        if(check(mi)) hi = mi;
        else lo = mi + 1;
    }

    check(lo);

    printf("%d\n", lo);

    for(int i = 1; i <= n; i++){
        for(int id: ans[i]){
            printf("%d ", id);
        }
        puts("0");
    }
}

Compilation message

jobs.cpp: In function 'bool check(int)':
jobs.cpp:16:32: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |             if(ans[idx].size() == x) idx++;
      |                ~~~~~~~~~~~~~~~~^~~~
jobs.cpp: In function 'int main()':
jobs.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     scanf("%d %d %d", &n, &d, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:29:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 7376 KB Output is correct
2 Correct 28 ms 6996 KB Output is correct
3 Correct 27 ms 6864 KB Output is correct
4 Correct 28 ms 6868 KB Output is correct
5 Correct 31 ms 6856 KB Output is correct
6 Correct 28 ms 6860 KB Output is correct
7 Correct 29 ms 6860 KB Output is correct
8 Correct 30 ms 6912 KB Output is correct
9 Correct 39 ms 7200 KB Output is correct
10 Correct 31 ms 7248 KB Output is correct
11 Correct 29 ms 7156 KB Output is correct
12 Correct 62 ms 8868 KB Output is correct
13 Correct 93 ms 12132 KB Output is correct
14 Correct 127 ms 13924 KB Output is correct
15 Correct 158 ms 15060 KB Output is correct
16 Correct 193 ms 17624 KB Output is correct
17 Correct 236 ms 21156 KB Output is correct
18 Correct 244 ms 20008 KB Output is correct
19 Correct 279 ms 21000 KB Output is correct
20 Correct 227 ms 21228 KB Output is correct