oj.uz

Submission #802860

# Submission time Handle Problem Language Result Execution time Memory
802860 2023-08-02T15:14:17 Z Ahmed57 Job Scheduling (IOI19_job) C++17
5 / 100
 74 ms 25676 KB 
#include<bits/stdc++.h>

using namespace std;
long long D[200001],U[200001];
bool comp(int a,int b){
     return (D[a]*U[b])<(D[b]*U[a]);
}
struct cmp {
	bool operator()(const int &a, const int &b) {
		return (D[a]*U[b])>(D[b]*U[a]);
	}
};
priority_queue<int,vector<int>,cmp> adj[200001];
long long scheduling_cost(vector<int> p,vector<int> u,vector<int> d){
    int n = p.size();
    int real[n];
    long long nxt[n],nick_name[n];
    U[0] = u[0] , D[0] = d[0];
    real[0] = 1;nxt[0] = -1;
    nick_name[0] = 0;
    for(int i = 1;i<n;i++){
        nick_name[i] = i;
        real[i] = 1;
        nxt[i] = -1;
        U[i] = u[i];
        D[i] = d[i];
        adj[p[i]].push(i);
    }
    for(int i = n-1;i>=0;i--){
        while(adj[i].size()){
            int x = -1;
            if(comp(adj[i].top(),i)){
                x = adj[i].top();
            }else break;
            adj[i].pop();
            real[x] = 0;
            nxt[nick_name[i]] = x;
            nick_name[i] = nick_name[x];
            D[i]+=D[x];
            U[i]+=U[x];
            if(adj[i].size()<adj[x].size())swap(adj[i],adj[x]);
            while(adj[x].size()){
                adj[i].push(adj[x].top());adj[x].pop();
            }
        }
    }
    vector<int> ans;
    for(int i = 0;i<n;i++){
        if(real[i]){
            ans.push_back(i);
        }
    }
    sort(ans.begin(),ans.end());
    long long all = 0 , cur = 0;
    for(int i = 0;i<ans.size();i++){
        int lol = ans[i];
        while(lol!=-1){
        cur+=d[lol];
        all+=cur*u[lol];
        lol = nxt[lol];
        }
    }
    return all;
}/*
int main(){
    cout<<scheduling_cost({-1,0,0},{5,2,5},{3,4,1});
}*/

Compilation message

job.cpp: In function 'long long int scheduling_cost(std::vector<int>, std::vector<int>, std::vector<int>)':
job.cpp:55:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i = 0;i<ans.size();i++){
      |                   ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 3 ms 6484 KB Output is correct
4 Correct 4 ms 6612 KB Output is correct
5 Correct 17 ms 10988 KB Output is correct
6 Correct 32 ms 15556 KB Output is correct
7 Correct 59 ms 20020 KB Output is correct
8 Correct 59 ms 24524 KB Output is correct
9 Correct 59 ms 24480 KB Output is correct
10 Correct 63 ms 24524 KB Output is correct
11 Correct 3 ms 6484 KB Output is correct
12 Correct 64 ms 24572 KB Output is correct
13 Correct 62 ms 24512 KB Output is correct
14 Correct 60 ms 24524 KB Output is correct
15 Correct 57 ms 24524 KB Output is correct
16 Correct 60 ms 24512 KB Output is correct
17 Correct 74 ms 24512 KB Output is correct
18 Correct 59 ms 24536 KB Output is correct
19 Correct 58 ms 24504 KB Output is correct
20 Correct 60 ms 25676 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 3 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 6484 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 69 ms 24520 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 6484 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 3 ms 6484 KB Output is correct
4 Correct 4 ms 6612 KB Output is correct
5 Correct 17 ms 10988 KB Output is correct
6 Correct 32 ms 15556 KB Output is correct
7 Correct 59 ms 20020 KB Output is correct
8 Correct 59 ms 24524 KB Output is correct
9 Correct 59 ms 24480 KB Output is correct
10 Correct 63 ms 24524 KB Output is correct
11 Correct 3 ms 6484 KB Output is correct
12 Correct 64 ms 24572 KB Output is correct
13 Correct 62 ms 24512 KB Output is correct
14 Correct 60 ms 24524 KB Output is correct
15 Correct 57 ms 24524 KB Output is correct
16 Correct 60 ms 24512 KB Output is correct
17 Correct 74 ms 24512 KB Output is correct
18 Correct 59 ms 24536 KB Output is correct
19 Correct 58 ms 24504 KB Output is correct
20 Correct 60 ms 25676 KB Output is correct
21 Correct 3 ms 6484 KB Output is correct
22 Incorrect 3 ms 6484 KB Output isn't correct
23 Halted 0 ms 0 KB -