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Submission #560260

# Submission time Handle Problem Language Result Execution time Memory
560260 2022-05-11T08:16:57 Z HappyPacMan Swapping Cities (APIO20_swap) C++14
13 / 100
 258 ms 36028 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 4;
vector<int> sack[maxn];
vector<pair<int,int> > ucond[maxn];
int dsu[maxn],uturn[maxn],adjs[maxn];

void join(int u,int v,int w){
    if(dsu[u] != dsu[v]){
        if(sack[dsu[v]].size() > sack[dsu[u]].size()){
            swap(u,v);
        }
        int temp = dsu[v];
        for(int it : sack[temp]){
            sack[dsu[u]].emplace_back(it);
            dsu[it] = dsu[u];
            ucond[it].emplace_back(dsu[it],w);
        }
        sack[temp].clear();
    }else if(uturn[dsu[u]] == -1){
        uturn[dsu[u]] = w;
    }
    adjs[u]++;
    adjs[v]++;
    if((adjs[u] > 2 || adjs[v] > 2) && uturn[dsu[u]] == -1){
        uturn[dsu[u]] = w;
    }
}

void init(int N,int M,vector<int> U,vector<int> V,vector<int> W){
    vector<tuple<int,int,int> > edge;
    for(int i=0;i<N;i++){
        dsu[i] = i;
        uturn[i] = -1;
        sack[i].emplace_back(i);
        ucond[i].emplace_back(i,0);
    }
    for(int i=0;i<M;i++){
        edge.emplace_back(W[i],U[i],V[i]);
    }
    sort(edge.begin(),edge.end());
    for(auto [w,u,v] : edge){
        join(u,v,w);
    }
    for(int i=0;i<N;i++){
        reverse(ucond[i].begin(),ucond[i].end());
    }
}

int getMinimumFuelCapacity(int X,int Y){
    int msize = min(ucond[X].size(),ucond[Y].size()), best = -1;
    for(int i=0;i<msize;i++){
        if(ucond[X][i].first == ucond[Y][i].first && uturn[ucond[X][i].first] != -1){
            if(best == -1){
                best = max({ucond[X][i].second,ucond[Y][i].second,uturn[ucond[X][i].first]});
            }else{
                best = min(best,max({ucond[X][i].second,ucond[Y][i].second,uturn[ucond[X][i].first]}));
            }
        }
    }
    return best;
}

Compilation message

swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:43:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   43 |     for(auto [w,u,v] : edge){
      |              ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9656 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9700 KB Output is correct
4 Correct 6 ms 9708 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 7 ms 9848 KB Output is correct
9 Correct 155 ms 26792 KB Output is correct
10 Correct 208 ms 30188 KB Output is correct
11 Correct 172 ms 29912 KB Output is correct
12 Correct 175 ms 31088 KB Output is correct
13 Correct 106 ms 23612 KB Output is correct
14 Correct 140 ms 26748 KB Output is correct
15 Correct 227 ms 32200 KB Output is correct
16 Correct 231 ms 31516 KB Output is correct
17 Correct 241 ms 32904 KB Output is correct
18 Correct 165 ms 25216 KB Output is correct
19 Correct 70 ms 16132 KB Output is correct
20 Correct 238 ms 35072 KB Output is correct
21 Correct 232 ms 34648 KB Output is correct
22 Correct 258 ms 36028 KB Output is correct
23 Correct 170 ms 28300 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9656 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 151 ms 22848 KB Output is correct
4 Correct 162 ms 25844 KB Output is correct
5 Correct 155 ms 25868 KB Output is correct
6 Correct 154 ms 25732 KB Output is correct
7 Correct 180 ms 25940 KB Output is correct
8 Correct 156 ms 25500 KB Output is correct
9 Correct 153 ms 25700 KB Output is correct
10 Correct 164 ms 25376 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9656 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9700 KB Output is correct
4 Correct 6 ms 9708 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 7 ms 9848 KB Output is correct
9 Correct 8 ms 9684 KB Output is correct
10 Correct 6 ms 9812 KB Output is correct
11 Incorrect 6 ms 9840 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9684 KB Output is correct
2 Correct 5 ms 9656 KB Output is correct
3 Correct 7 ms 9684 KB Output is correct
4 Correct 6 ms 9700 KB Output is correct
5 Correct 6 ms 9708 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 7 ms 9848 KB Output is correct
10 Correct 155 ms 26792 KB Output is correct
11 Correct 208 ms 30188 KB Output is correct
12 Correct 172 ms 29912 KB Output is correct
13 Correct 175 ms 31088 KB Output is correct
14 Correct 106 ms 23612 KB Output is correct
15 Correct 6 ms 9812 KB Output is correct
16 Incorrect 6 ms 9840 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9656 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9700 KB Output is correct
4 Correct 6 ms 9708 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 7 ms 9848 KB Output is correct
9 Correct 155 ms 26792 KB Output is correct
10 Correct 208 ms 30188 KB Output is correct
11 Correct 172 ms 29912 KB Output is correct
12 Correct 175 ms 31088 KB Output is correct
13 Correct 106 ms 23612 KB Output is correct
14 Correct 140 ms 26748 KB Output is correct
15 Correct 227 ms 32200 KB Output is correct
16 Correct 231 ms 31516 KB Output is correct
17 Correct 241 ms 32904 KB Output is correct
18 Correct 165 ms 25216 KB Output is correct
19 Correct 151 ms 22848 KB Output is correct
20 Correct 162 ms 25844 KB Output is correct
21 Correct 155 ms 25868 KB Output is correct
22 Correct 154 ms 25732 KB Output is correct
23 Correct 180 ms 25940 KB Output is correct
24 Correct 156 ms 25500 KB Output is correct
25 Correct 153 ms 25700 KB Output is correct
26 Correct 164 ms 25376 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Incorrect 6 ms 9840 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9684 KB Output is correct
2 Correct 5 ms 9656 KB Output is correct
3 Correct 7 ms 9684 KB Output is correct
4 Correct 6 ms 9700 KB Output is correct
5 Correct 6 ms 9708 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 7 ms 9848 KB Output is correct
10 Correct 155 ms 26792 KB Output is correct
11 Correct 208 ms 30188 KB Output is correct
12 Correct 172 ms 29912 KB Output is correct
13 Correct 175 ms 31088 KB Output is correct
14 Correct 106 ms 23612 KB Output is correct
15 Correct 140 ms 26748 KB Output is correct
16 Correct 227 ms 32200 KB Output is correct
17 Correct 231 ms 31516 KB Output is correct
18 Correct 241 ms 32904 KB Output is correct
19 Correct 165 ms 25216 KB Output is correct
20 Correct 151 ms 22848 KB Output is correct
21 Correct 162 ms 25844 KB Output is correct
22 Correct 155 ms 25868 KB Output is correct
23 Correct 154 ms 25732 KB Output is correct
24 Correct 180 ms 25940 KB Output is correct
25 Correct 156 ms 25500 KB Output is correct
26 Correct 153 ms 25700 KB Output is correct
27 Correct 164 ms 25376 KB Output is correct
28 Correct 6 ms 9812 KB Output is correct
29 Incorrect 6 ms 9840 KB Output isn't correct
30 Halted 0 ms 0 KB -