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Submission #744283

# Submission time Handle Problem Language Result Execution time Memory
744283 2023-05-18T10:21:51 Z vjudge1 Job Scheduling (CEOI12_jobs) C++17
100 / 100
 178 ms 14520 KB 
#include<bits/stdc++.h>

using namespace std;

using ll = long long ;
using pii = pair<ll , ll> ;
using i3 = tuple<ll , ll , ll> ;

const int N = 1e6+5 ;
const int MOD = 1e9+7 ;

ll n , d , m ;
pii S[N] ;

bool solve(ll mid){

    ll day = 1 , cnt = 0 ;
    for(int i=1;i<=m;i++){
        if(day < S[i].first){
            day = S[i].first ;
            cnt = 0 ;
        }
        if(day <= S[i].first + d){ // do job i-th
            cnt++ ;
        }
        else {
            return false ;
        }
        if(cnt == mid){
            day++;
            cnt = 0 ;
        }
    }

    if(cnt == 0) day--;

    return day <= n ;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

    cin >> n >> d >> m ;
    for(int i=1, x;i<=m;i++){
        cin >> x ;
        S[i] = {x , i};
    }

    sort(S+1 , S+m+1) ;

    ll l = 1 , r = m , ans = 0 ;

    while(l <= r){
        ll mid = (l+r)/2 ;

        if(solve(mid)){
            r = mid-1 ;
            ans = mid ;
        }
        else {
            l = mid+1 ;
        }
    }

    cout << ans << "\n" ;
    for(int i=1;i<=n;i++){
        cout << "0\n" ;
    }
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1876 KB Output is correct
2 Correct 11 ms 1892 KB Output is correct
3 Correct 10 ms 1892 KB Output is correct
4 Correct 10 ms 1876 KB Output is correct
5 Correct 10 ms 1812 KB Output is correct
6 Correct 10 ms 1896 KB Output is correct
7 Correct 10 ms 1876 KB Output is correct
8 Correct 10 ms 1876 KB Output is correct
9 Correct 22 ms 2024 KB Output is correct
10 Correct 19 ms 2004 KB Output is correct
11 Correct 17 ms 1896 KB Output is correct
12 Correct 36 ms 3428 KB Output is correct
13 Correct 54 ms 4948 KB Output is correct
14 Correct 82 ms 6568 KB Output is correct
15 Correct 108 ms 8024 KB Output is correct
16 Correct 119 ms 9724 KB Output is correct
17 Correct 135 ms 11168 KB Output is correct
18 Correct 164 ms 12840 KB Output is correct
19 Correct 178 ms 14520 KB Output is correct
20 Correct 142 ms 11220 KB Output is correct