Submission #1327583

#	Time	Username	Problem	Language	Result	Execution time	Memory
1327583		hojiakbar2011	Job Scheduling (CEOI12_jobs)	C++20	100 / 100	185 ms	20916 KiB

jobs

#include <bits/stdc++.h>
using namespace std;
 
#define all(x) (x).begin(), (x).end()
#define ll long long
#define int long long
#define f first
#define s second
#define pb push_back
#define mp make_pair
 
void setIO(string s) {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    if (!s.empty()) {
        freopen((s + ".in").c_str(), "r", stdin);
        freopen((s + ".out").c_str(), "w", stdout);
    }
}
signed main() {
    setIO("");
    ll n, d, m;
    cin>>n>>d>>m;
    vector<pair<ll,ll>> p(m);
    for(int i=0;i<m;i++){
        cin>>p[i].f;
        p[i].f--;
        p[i].s=i;
    }
    sort(all(p));
    // for(auto u : p) cout<<u.f<<" "<<u.s<<"\n";
    ll l=1, r=m;
    while(l<r-1){
        ll mid=(l+r)/2;
        ll req=0;
        bool ok=1;
        for(int i=0;i<n;i++){
            for(int j=0;j<mid;j++){
                if(p[req].f>i) break;
                if(i-p[req].f>d){
                    ok=0;
                    break;
                }
                req++;
                if(req==m) break;
            }
            if(!ok || req==m) break;
        }
        if(req<m) ok=0;
        if(ok) r=mid;
        else l=mid;
    }
    cout<<r<<"\n";
    ll req=0;
    for(int i=0;i<n;i++){
        for(int j=0;j<r;j++){
            if(req==m) break;
            if(p[req].f>i) break;
            cout<<p[req].s+1<<" ";
            req++;
            
        }
        cout<<0<<"\n";
    }
    

}

Compilation message (stderr)

jobs.cpp: In function 'void setIO(std::string)':
jobs.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen((s + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen((s + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100