oj.uz

답안 #409920

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
409920 2021-05-21T19:08:06 Z Richw818 Job Scheduling (CEOI12_jobs) C++17
100 / 100
 316 ms 13764 KB 
/*
 *  Written by: Richw818
 *  Lang: C++17
 *  main.cpp
 */
#include <bits/stdc++.h>
using namespace std;
//Macros
#define ll long long
#define ull unsigned long long
#define uint unsigned int
#define pb push_back
#define pf push_front
#define eb emplace_back
#define ef emplace_front
#define str string
#define fi first
#define se second
#define REP(i, n) for(int i = 0; i < (int)n; ++i)
#define sz(a) (int)(a.size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
//IO
template<class H, class T> void read(pair<H, T> &p);
template<class T> void read(vector<T>& v);
template<class T> void read(T& t){
    cin >> t;
}
template<class H, class... T> void read(H& h, T&... t){
    read(h);
    read(t...);
}
template<class T> void read(vector<T>& v){
    for(auto &t : v)
        read(t);
}
template<class H, class T> void read(pair<H, T> &p){
    read(p.fi, p.se);
}
void setIn(str s){
    freopen(s.c_str(), "r", stdin);
}
void setOut(str s){
    freopen(s.c_str(), "w", stdout);
}
void setIO(str s = ""){
    if(!sz(s))
        return;
    setIn(s+".in");
    setOut(s+".out");
}
//Debug
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 T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
template<class H, class... T> void dbg(H& h, T&... t){
    dbg(h);
    dbg(t...);
}
#ifndef ONLINE_JUDGE
#define dbg(x...) cerr << "[" << #x << "] = ["; _print(x);
#else
#define dbg(x...)
#endif
//Constants
ll MODS[2] = {1000000007, 998244353};
const ll MOD = MODS[0];
const ll INF = (ll)1e18;
const double PI = acos(-1.0);
const int MAXN = (int)3e5+7;
//Code
int n, d, m;
vector<pair<int,int>> jobs;
bool can(int mach){
    int day = 1, curr = 0;
    for(auto j : jobs){
        if(day > j.fi + d)
            return false;
        if(j.fi > day){
            curr = 0;
            day = j.fi;
        }
        ++curr;
        if(curr >= mach){
            ++day;
            curr = 0;
        }
    }
    return true;
}
void solve(){
    read(n, d, m);
    jobs.resize(m);
    REP(i, m){
        read(jobs[i].fi);
        jobs[i].se = i+1;
    }
    sort(all(jobs));
    int l = 1, r = m;
    while(l <= r){
        int mid = (l + r) / 2;
        bool val = can(mid);
        if(val)
            r = mid - 1;
        else
            l = mid + 1;
    }
    cout << l << '\n';
    int j = 0;
    for(int i = 1; i <= n; ++i){
        int curr = 0;
        while(j < m && curr < l && jobs[j].fi <= i){
            cout << jobs[j].se << ' ';
            ++curr;
            ++j;
        }
        cout << 0 << '\n';
    }
}
int main(){
    setIO();
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}
/* stuff you should look for
	* int overflow, array bounds
	* special cases (n=1?)
	* do smth instead of nothing and stay organized
	* WRITE STUFF DOWN
	* DON'T GET STUCK ON ONE APPROACH
*/

Compilation message

jobs.cpp: In function 'void setIn(std::string)':
jobs.cpp:41:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |     freopen(s.c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp: In function 'void setOut(std::string)':
jobs.cpp:44:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |     freopen(s.c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 1620 KB Output is correct
2 Correct 35 ms 1612 KB Output is correct
3 Correct 24 ms 1696 KB Output is correct
4 Correct 30 ms 1612 KB Output is correct
5 Correct 27 ms 1612 KB Output is correct
6 Correct 24 ms 1672 KB Output is correct
7 Correct 25 ms 1636 KB Output is correct
8 Correct 24 ms 1612 KB Output is correct
9 Correct 39 ms 1868 KB Output is correct
10 Correct 45 ms 1856 KB Output is correct
11 Correct 32 ms 1608 KB Output is correct
12 Correct 64 ms 3140 KB Output is correct
13 Correct 100 ms 4548 KB Output is correct
14 Correct 134 ms 6140 KB Output is correct
15 Correct 162 ms 7620 KB Output is correct
16 Correct 199 ms 9096 KB Output is correct
17 Correct 243 ms 10564 KB Output is correct
18 Correct 270 ms 12076 KB Output is correct
19 Correct 316 ms 13764 KB Output is correct
20 Correct 250 ms 10548 KB Output is correct