Submission #741206

#	Time	Username	Problem	Language	Result	Execution time	Memory
741206		bleu	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	247 ms	30064 KiB

jobs

#include <bits/stdc++.h>
#include <vector>
#define pb push_back
using namespace std;


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

    int n, d, m;
    cin >> n >> d >> m;

    vector<vector<int>> J(n);
    for(int i=0; i<m; i++) {
        int c; cin >> c;
        J[c-1].pb(i+1);
    }

    int lo=0, hi=m;
    vector<vector<int>> A(n);

    while(lo < hi) {
        vector<vector<int>> S(n);
        int mid = (lo + hi) / 2;

        int t = 0;
        bool works=true;
        for(int i=0; i<n && works; i++) {
            t=max(t,i);
            for(auto j : J[i]) {
                if(S[t].size()>=mid) t++;
                S[t].pb(j);
            }
            if(t-i>d) works=false;
        }
        if(works) {hi = mid; A=S;}
        else lo = mid+1;
    }

    cout << lo << "\n";
    for(int i=0; i<n; i++) {
        for(auto j : A[i]) cout << j << " ";
        cout << "0" << "\n";
    }
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:32:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |                 if(S[t].size()>=mid) t++;
      |                    ~~~~~~~~~~~^~~~~

• Subtask 1: 100 / 100