Submission #890627

# Submission time Handle Problem Language Result Execution time Memory
890627 2023-12-21T17:05:53 Z nosaboy Job Scheduling (CEOI12_jobs) C++17
15 / 100
307 ms 24148 KB
#include <bits/stdc++.h>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T>
using orderedMultiset = tree<T ,null_type,std::less_equal<T>, rb_tree_tag,tree_order_statistics_node_update>;
typedef long long ll;
typedef pair<int, int> pi;
typedef vector<int> vi;
#define f first
#define s second
#define pb push_back
#define rep(i, a, b) for(int i = a; i < (b); ++i) 
#define all(x) (x).begin(), (x).end()
ll MOD = 1000000007;
 
mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

ll add(ll x, ll y)
{
    x += y;
    while(x >= MOD) x -= MOD;
    while(x < 0) x += MOD;
    return x;
}  
 
ll mult(ll x, ll y)
{
    return (x * 1ll * y) % MOD;
}
ll lpow(ll x, ll y)
{
    if(y == 0){
        return 1;
    }
    ll z = 1;
    while(y)
    {
        if(y & 1) z = mult(z, x);
        x = mult(x, x);
        y >>= 1;
    }
    return z;
}
bool prime(int x)
{
    for(int i = 2; i * 1ll * i <= x; i++)
        if(x % i == 0)
            return false;
    return true;    
}
 
ll inv(ll x) {
	return lpow(x, MOD - 2);
}

ll divide(ll x, ll y)
{
    return mult(x, inv(y));
}
long long gcd(long long int a, long long int b)
{
  if (b == 0)
    return a;
  return gcd(b, a % b);
}
 
// Function to return LCM of two numbers
long long lcm(int a, int b)
{
    return (a / gcd(a, b)) * b;
}
//math
 
 
vector <ll> ar;
vector <ll> br;
void printDivisors(ll n)
{
    // Note that this loop runs till square root
    for (ll i=1; i<=sqrt(n); i++)
    {
        if (n%i == 0)
        {
            // If divisors are equal, print only one
            if (n/i == i){
                ar.pb(i);
            }
                
  
            else{
                ar.pb(i);
                ar.pb(n/i);
            } // Otherwise print both
                
               
        }
    }
}
void bprintDivisors(ll n)
{
    // Note that this loop runs till square root
    for (ll i=1; i<=sqrt(n); i++)
    {
        if (n%i == 0)
        {
            // If divisors are equal, print only one
            if (n/i == i){
                br.pb(i);
            }
                
  
            else{
                br.pb(i);
                br.pb(n/i);
            } // Otherwise print both
                
               
        }
    }
}
 

struct DSU {
	vector<int> e;
	DSU(int N) { e = vector<int>(N, -1); }
 
	// get representive component (uses path compression)
	int get(int x) { return e[x] < 0 ? x : e[x] = get(e[x]); }
 
	bool same_set(int a, int b) { return get(a) == get(b); }
 
	int size(int x) { return -e[get(x)]; }
 
	bool unite(int x, int y) {  // union by size
		x = get(x), y = get(y);
		if (x == y) return false;
		if (e[x] > e[y]) swap(x, y);
		e[x] += e[y]; e[y] = x; return true;
	}
};
/** Computes x^n modulo m in O(log p) time. */
ll qexp(ll a, ll b, ll m) {
    ll res = 1;
    while (b) {
        if (b % 2) res = res * a % m;
        a = a * a % m;
        b /= 2;
    }
    return res;
}
vector<ll> fact, invf;
 
void precompute(int n) {
    /** Precomputes n! from 0 to MAXN. */
    fact.assign(n + 1, 1); 
    for (int i = 1; i <= n; i++) fact[i] = fact[i - 1] * i % MOD;
    invf.assign(n + 1, 1);
    /**
    * Precomputes all modular inverse factorials
    * from 0 to MAXN in O(n + log p) time
    */
    invf[n] = qexp(fact[n], MOD - 2, MOD);
    for (int i = n - 1; i > 0; i--) invf[i] = invf[i + 1] * (i + 1) % MOD;
}
/** Computes nCr mod p */
ll nCk(ll n,ll k) {
    if (k < 0 || k > n) return 0;
    return fact[n] * invf[k] % MOD * invf[n - k] % MOD;
    // return fact[n] * qexp(fact[k], MOD - 2, MOD) % MOD * qexp(fact[n - k], MOD - 2, MOD) % MOD;
}
 


void solve(){
    int n,d,m;cin>>n>>d>>m;
    vector <pi> v;
    rep(i,0,m){
        int u;cin>>u;v.pb({u,i});
    }
    sort(v.begin(),v.end());
    int lo = 0; int hi = m;
    hi++;
	while (lo < hi) {
		int mid = lo + (hi - lo) / 2;
        int day = 0;
        int cnt = 0;
        bool yn = true;
        rep(i,0,m){
            if(cnt == mid){
                // reset
                day++;
                cnt = 0; 
            }
            if(day - v[i].first > d){ // past expiration
                yn = false;
            }
            cnt++;
        }
		if (yn) {
			hi = mid;
		} else {
			lo = mid + 1;
		}
	}
    int day = 0;
    int cnt = 0;
    bool yn = true;
    vi aj[n]; // for every day
    rep(i,0,m){
        if(cnt == hi){
            // reset
            day++;
            cnt = 0; 
        }
        aj[day].pb(v[i].second);
            cnt++;
        }
    cout<<hi<<endl;
    rep(i,0,n){
        rep(j,0,aj[i].size()){
            cout<<aj[i][j]+1<<" ";
        }
        cout<<0<<endl;
    }
    
}
    


int main(){
	auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t;t=1;

    while(t--){
        solve();
    }
  
    
		
 
    
	auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
   cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
	return 0;
}   

Compilation message

jobs.cpp: In function 'void solve()':
jobs.cpp:17:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 | #define rep(i, a, b) for(int i = a; i < (b); ++i)
      |                                       ^
jobs.cpp:225:9: note: in expansion of macro 'rep'
  225 |         rep(j,0,aj[i].size()){
      |         ^~~
jobs.cpp:212:10: warning: unused variable 'yn' [-Wunused-variable]
  212 |     bool yn = true;
      |          ^~
# Verdict Execution time Memory Grader output
1 Incorrect 25 ms 2776 KB Output isn't correct
2 Incorrect 26 ms 2776 KB Output isn't correct
3 Incorrect 31 ms 3020 KB Output isn't correct
4 Incorrect 25 ms 2776 KB Output isn't correct
5 Incorrect 26 ms 2728 KB Output isn't correct
6 Incorrect 27 ms 2860 KB Output isn't correct
7 Incorrect 26 ms 2772 KB Output isn't correct
8 Incorrect 26 ms 3028 KB Output isn't correct
9 Incorrect 133 ms 5328 KB Output isn't correct
10 Incorrect 130 ms 5064 KB Output isn't correct
11 Incorrect 22 ms 2520 KB Output isn't correct
12 Correct 53 ms 4952 KB Output is correct
13 Incorrect 69 ms 7872 KB Output isn't correct
14 Correct 101 ms 10944 KB Output is correct
15 Incorrect 110 ms 11276 KB Output isn't correct
16 Correct 151 ms 14780 KB Output is correct
17 Incorrect 169 ms 19100 KB Output isn't correct
18 Incorrect 189 ms 20660 KB Output isn't correct
19 Incorrect 307 ms 24148 KB Output isn't correct
20 Incorrect 170 ms 20856 KB Output isn't correct