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Submission #802818

# Submission time Handle Problem Language Result Execution time Memory
802818 2023-08-02T14:49:40 Z Ahmed57 Job Scheduling (IOI19_job) C++17
5 / 100
 80 ms 25760 KB 
#include<bits/stdc++.h>

using namespace std;
long long D[200001],U[200001];
vector<int> adj[200001];
bool comp(int a,int b){
     return (D[a]*U[b])<(D[b]*U[a]);
}
long long scheduling_cost(vector<int> p,vector<int> u,vector<int> d){
    int n = p.size();
    int real[n];
    long long nxt[n];
    U[0] = u[0] , D[0] = d[0];
    real[0] = 1;nxt[0] = -1;
    for(int i = 1;i<n;i++){
        real[i] = 1;
        nxt[i] = -1;
        U[i] = u[i];
        D[i] = d[i];
        adj[p[i]].push_back(i);
    }
    for(int i = n-1;i>=0;i--){
        while(adj[i].size()){
            int x = -1;
            if(comp(adj[i].back(),i)){
                x = adj[i].back();
            }
            adj[i].pop_back();
            if(x==-1)continue;
            real[x] = 0;
            nxt[i] = 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_back(adj[x].back());adj[x].pop_back();
            }
        }
    }
    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:48:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for(int i = 0;i<ans.size();i++){
      |                   ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 5008 KB Output is correct
3 Correct 3 ms 5004 KB Output is correct
4 Correct 2 ms 5024 KB Output is correct
5 Correct 20 ms 10048 KB Output is correct
6 Correct 33 ms 15116 KB Output is correct
7 Correct 50 ms 20036 KB Output is correct
8 Correct 80 ms 25252 KB Output is correct
9 Correct 63 ms 25244 KB Output is correct
10 Correct 75 ms 25240 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 65 ms 25260 KB Output is correct
13 Correct 64 ms 25252 KB Output is correct
14 Correct 67 ms 25132 KB Output is correct
15 Correct 62 ms 24524 KB Output is correct
16 Correct 64 ms 25128 KB Output is correct
17 Correct 63 ms 25244 KB Output is correct
18 Correct 65 ms 25248 KB Output is correct
19 Correct 73 ms 24492 KB Output is correct
20 Correct 64 ms 25760 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Incorrect 2 ms 4948 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 5012 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4948 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4948 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 5008 KB Output is correct
3 Correct 3 ms 5004 KB Output is correct
4 Correct 2 ms 5024 KB Output is correct
5 Correct 20 ms 10048 KB Output is correct
6 Correct 33 ms 15116 KB Output is correct
7 Correct 50 ms 20036 KB Output is correct
8 Correct 80 ms 25252 KB Output is correct
9 Correct 63 ms 25244 KB Output is correct
10 Correct 75 ms 25240 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 65 ms 25260 KB Output is correct
13 Correct 64 ms 25252 KB Output is correct
14 Correct 67 ms 25132 KB Output is correct
15 Correct 62 ms 24524 KB Output is correct
16 Correct 64 ms 25128 KB Output is correct
17 Correct 63 ms 25244 KB Output is correct
18 Correct 65 ms 25248 KB Output is correct
19 Correct 73 ms 24492 KB Output is correct
20 Correct 64 ms 25760 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Incorrect 2 ms 4948 KB Output isn't correct
23 Halted 0 ms 0 KB -