Submission #783496

#	Time	Username	Problem	Language	Result	Execution time	Memory
783496		horiiseun	Job Scheduling (CEOI12_jobs)	C++17	0 / 100	209 ms	18660 KiB

jobs

#include <iostream>
#include <vector>
#include <tuple>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <map>
#include <cmath>
#include <random>
#include <string>
#include <bitset>
#include <cassert>
#include <climits>
#include <algorithm>
#include <unordered_set>
#include <unordered_map>
using namespace std;
 
#define ll long long
#define f first
#define s second
 
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
 
template<typename A> void __print(const A &x);
template<typename A, typename B> void __print(const pair<A, B> &p);
template<typename... A> void __print(const tuple<A...> &t);
template<typename T> void __print(stack<T> s);
template<typename T> void __print(queue<T> q);
template<typename T, typename... U> void __print(priority_queue<T, U...> q);
 
template<typename A> void __print(const A &x) {
    bool first = true;
    cerr << '{';
    for (const auto &i : x) {
        cerr << (first ? "" : ","), __print(i);
        first = false;
    }
    cerr << '}';
}
 
template<typename A, typename B> void __print(const pair<A, B> &p) {
    cerr << '(';
    __print(p.f);
    cerr << ',';
    __print(p.s);
    cerr << ')';
}
 
template<typename... A> void __print(const tuple<A...> &t) {
    bool first = true;
    cerr << '(';
    apply([&first] (const auto &...args) { ((cerr << (first ? "" : ","), __print(args), first = false), ...); }, t);
    cerr << ')';
}
 
template<typename T> void __print(stack<T> s) {
    vector<T> debugVector;
    while (!s.empty()) {
        T t = s.top();
        debugVector.push_back(t);
        s.pop();
    }
    reverse(debugVector.begin(), debugVector.end());
    __print(debugVector);
}
 
template<typename T> void __print(queue<T> q) {
    vector<T> debugVector;
    while (!q.empty()) {
        T t = q.front();
        debugVector.push_back(t);
        q.pop();
    }
    __print(debugVector);
}
 
template<typename T, typename... U> void __print(priority_queue<T, U...> q) {
    vector<T> debugVector;
    while (!q.empty()) {
        T t = q.top();
        debugVector.push_back(t);
        q.pop();
    }
    __print(debugVector);
}
 
void _print() { cerr << "]\n"; }
 
template <typename Head, typename... Tail> void _print(const Head &H, const Tail &...T) {
    __print(H);
    if (sizeof...(T)) cerr << ", ";
    _print(T...);
}
 
#ifdef DEBUG
	#define D(...) cerr << "Line: " << __LINE__ << " [" << #__VA_ARGS__ << "] = ["; _print(__VA_ARGS__)
#else
    #define D(...)
#endif

int n, d, m, l, r, md, t[1000005];
vector<pair<int, int>> jobs;
vector<vector<int>> ans;

bool valid(int x) {
    vector<int> tmp;
    int idx = 0;
    for (int i = 1; i <= n; i++) {
        while (idx < m && jobs[idx].f <= i && tmp.size() < x) {
            tmp.push_back(jobs[idx].s);
            idx++;
        }
        if (tmp.size() == x) {
            for (int j : tmp) {
                if (t[j] + d < i) {
                    return false;
                }
            }
            ans.push_back(tmp);
            tmp.clear();
        }
    }
    if (tmp.size()) {
        for (int j : tmp) {
            if (t[j] + d < n) {
                return false;
            }
        }
        ans.push_back(tmp);
        tmp.clear();
    }
    while (ans.size() < n) {
        ans.push_back(tmp);
    }
    return true;
}

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n >> d >> m;
    for (int i = 1; i <= m; i++) {
        cin >> t[i];
        jobs.push_back({t[i], i});
    }
    sort(jobs.begin(), jobs.end());

    l = 0, r = 1e6 + 5;
    while (l + 1 != r) {
        md = (l + r) / 2;
        ans.clear();
        if (valid(md)) r = md;
        else l = md;
    }

    cout << r << "\n";

    for (vector<int> v : ans) {
        for (int i : v) {
            cout << i << " ";
        }
        cout << 0 << "\n";
    }

}

Compilation message (stderr)

jobs.cpp: In function 'bool valid(int)':
jobs.cpp:123:58: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  123 |         while (idx < m && jobs[idx].f <= i && tmp.size() < x) {
      |                                               ~~~~~~~~~~~^~~
jobs.cpp:127:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  127 |         if (tmp.size() == x) {
      |             ~~~~~~~~~~~^~~~
jobs.cpp:146:23: warning: comparison of integer expressions of different signedness: 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  146 |     while (ans.size() < n) {
      |            ~~~~~~~~~~~^~~

• Subtask 1: 0 / 100