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Submission #338592

# Submission time Handle Problem Language Result Execution time Memory
338592 2020-12-23T13:15:18 Z bigDuck Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 148 ms 12652 KB 
#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount

/*ifstream fin("test_input.txt");
#define cin fin*/



int t, n, m, k, b[30010], p[30010];
int crd[30010];


int d[30010];
bool v[30010];
vector<pii> g[30010];
bool dog[30010];



void dijkstra(){
multiset<pii> ms;
ms.insert({d[crd[1] ], crd[1]});

while(!ms.empty()){
    auto f=*ms.begin(); ms.erase(ms.begin());
    int nod=f.sc;
    v[nod]=true;
    //cout<<nod<<" "<<d[nod]<<"y\n";
    if(nod==crd[2]){return;}

    for(auto pr:g[nod]){
        int u=pr.ft, c=pr.sc;
        if(v[u]){continue;}
        //cout<<u<<" "<<c<<"x\n";
        auto it=ms.find({d[u], u});
        if(it!=ms.end()){
            ms.erase(it);
            d[u]=min(d[u], d[nod]+c);
            ms.insert({d[u], u});
        }
        else{
                d[u]=d[nod]+c;
            ms.insert({d[u], u} );
        }
    }


}

return;
}




map<pii, int> up, down;
pii pr[30010];



void add_chain1(int b, int p){

int lim=down[{b%p, p}];

for(int i=b-p; (i>=1) && ( (i>=lim) ) ; i-=p){
    if(dog[i]){g[b].pb({i, abs(i-b)/p });  }
}
down[{b%p, p}]=max(lim, b);



}


void add_chain2(int b, int p){



if(up[{b%p, p}]==0){ up[{b%p, p }]=n+1; }
int lim=up[{b%p, p}];

for(int i=b+p; (i<=n) && ( (i<=lim) ) ; i+=p){
    if(dog[i]){g[b].pb({i, abs(i-b)/p }); }
}
up[{b%p, p} ]=min( lim, b);

}





int32_t main(){
INIT
cin>>n>>m;

for(int i=1; i<=n; i++){d[i]=-1; }

for(int i=1; i<=m; i++){
cin>>b[i]>>p[i]; b[i]++;
crd[i ]=b[i];
dog[b[i] ]=true;
pr[i]={b[i], p[i]};
}
sort(pr+1, pr+1+m);
for(int i=1; i<=m; i++){
    add_chain1(pr[i].ft, pr[i].sc);
}

for(int i=m; i>=1; i--){
    add_chain2(pr[i].ft, pr[i].sc);
}




d[crd[1] ]=0;
dijkstra();
cout<<d[crd[2] ];

/*for(int i=1; i<=n; i++){
    for(auto u:g[i]){
        cout<<u.ft<<" ";
    }
    cout<<"\n";
}*/



return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1004 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1132 KB Output is correct
2 Correct 1 ms 1132 KB Output is correct
3 Correct 1 ms 1132 KB Output is correct
4 Correct 1 ms 1132 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1132 KB Output is correct
9 Correct 1 ms 1132 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 3 ms 1388 KB Output is correct
12 Correct 1 ms 1132 KB Output is correct
13 Correct 2 ms 1152 KB Output is correct
14 Correct 3 ms 1388 KB Output is correct
15 Correct 4 ms 1388 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1132 KB Output is correct
2 Correct 1 ms 1132 KB Output is correct
3 Correct 1 ms 1132 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1132 KB Output is correct
9 Correct 1 ms 1132 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 3 ms 1388 KB Output is correct
12 Correct 2 ms 1132 KB Output is correct
13 Correct 1 ms 1132 KB Output is correct
14 Correct 3 ms 1388 KB Output is correct
15 Correct 3 ms 1388 KB Output is correct
16 Correct 2 ms 1260 KB Output is correct
17 Correct 5 ms 1516 KB Output is correct
18 Correct 3 ms 1388 KB Output is correct
19 Correct 2 ms 1132 KB Output is correct
20 Correct 2 ms 1260 KB Output is correct
21 Correct 2 ms 1260 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 2 ms 1260 KB Output is correct
24 Correct 4 ms 1516 KB Output is correct
25 Correct 3 ms 1516 KB Output is correct
26 Correct 2 ms 1132 KB Output is correct
27 Correct 2 ms 1132 KB Output is correct
28 Correct 3 ms 1644 KB Output is correct
29 Correct 2 ms 1260 KB Output is correct
30 Correct 1 ms 1132 KB Output is correct
31 Correct 1 ms 1132 KB Output is correct
32 Correct 1 ms 1132 KB Output is correct
33 Correct 3 ms 1388 KB Output is correct
34 Correct 3 ms 1388 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1132 KB Output is correct
2 Correct 1 ms 1132 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1132 KB Output is correct
9 Correct 1 ms 1132 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 3 ms 1388 KB Output is correct
12 Correct 1 ms 1132 KB Output is correct
13 Correct 1 ms 1132 KB Output is correct
14 Correct 3 ms 1388 KB Output is correct
15 Correct 3 ms 1388 KB Output is correct
16 Correct 2 ms 1260 KB Output is correct
17 Correct 5 ms 1516 KB Output is correct
18 Correct 2 ms 1260 KB Output is correct
19 Correct 2 ms 1132 KB Output is correct
20 Correct 2 ms 1132 KB Output is correct
21 Correct 2 ms 1260 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 3 ms 1408 KB Output is correct
24 Correct 6 ms 1516 KB Output is correct
25 Correct 3 ms 1516 KB Output is correct
26 Correct 2 ms 1132 KB Output is correct
27 Correct 2 ms 1132 KB Output is correct
28 Correct 3 ms 1644 KB Output is correct
29 Correct 2 ms 1260 KB Output is correct
30 Correct 1 ms 1132 KB Output is correct
31 Correct 1 ms 1132 KB Output is correct
32 Correct 1 ms 1132 KB Output is correct
33 Correct 3 ms 1388 KB Output is correct
34 Correct 3 ms 1388 KB Output is correct
35 Correct 50 ms 5868 KB Output is correct
36 Correct 7 ms 2028 KB Output is correct
37 Correct 49 ms 5868 KB Output is correct
38 Correct 58 ms 7148 KB Output is correct
39 Correct 50 ms 7020 KB Output is correct
40 Correct 42 ms 7040 KB Output is correct
41 Correct 48 ms 7148 KB Output is correct
42 Correct 8 ms 1644 KB Output is correct
43 Correct 9 ms 1644 KB Output is correct
44 Correct 7 ms 1772 KB Output is correct
45 Correct 32 ms 5868 KB Output is correct
46 Correct 33 ms 5868 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1132 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1132 KB Output is correct
9 Correct 1 ms 1132 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 3 ms 1388 KB Output is correct
12 Correct 1 ms 1132 KB Output is correct
13 Correct 2 ms 1132 KB Output is correct
14 Correct 3 ms 1388 KB Output is correct
15 Correct 4 ms 1388 KB Output is correct
16 Correct 2 ms 1260 KB Output is correct
17 Correct 5 ms 1516 KB Output is correct
18 Correct 2 ms 1260 KB Output is correct
19 Correct 2 ms 1132 KB Output is correct
20 Correct 2 ms 1132 KB Output is correct
21 Correct 2 ms 1260 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 2 ms 1260 KB Output is correct
24 Correct 4 ms 1516 KB Output is correct
25 Correct 3 ms 1516 KB Output is correct
26 Correct 2 ms 1132 KB Output is correct
27 Correct 2 ms 1132 KB Output is correct
28 Correct 3 ms 1644 KB Output is correct
29 Correct 2 ms 1260 KB Output is correct
30 Correct 1 ms 1132 KB Output is correct
31 Correct 1 ms 1132 KB Output is correct
32 Correct 1 ms 1132 KB Output is correct
33 Correct 3 ms 1388 KB Output is correct
34 Correct 3 ms 1388 KB Output is correct
35 Correct 43 ms 5868 KB Output is correct
36 Correct 7 ms 2028 KB Output is correct
37 Correct 58 ms 5996 KB Output is correct
38 Correct 54 ms 7292 KB Output is correct
39 Correct 42 ms 7020 KB Output is correct
40 Correct 42 ms 7020 KB Output is correct
41 Correct 46 ms 7276 KB Output is correct
42 Correct 8 ms 1772 KB Output is correct
43 Correct 9 ms 1644 KB Output is correct
44 Correct 7 ms 1772 KB Output is correct
45 Correct 33 ms 5996 KB Output is correct
46 Correct 33 ms 5868 KB Output is correct
47 Correct 148 ms 12652 KB Output is correct
48 Correct 35 ms 5996 KB Output is correct
49 Correct 30 ms 5260 KB Output is correct
50 Correct 21 ms 4204 KB Output is correct
51 Correct 89 ms 8556 KB Output is correct
52 Correct 89 ms 8684 KB Output is correct
53 Correct 41 ms 6588 KB Output is correct
54 Correct 1 ms 1132 KB Output is correct
55 Correct 1 ms 1280 KB Output is correct
56 Correct 13 ms 2924 KB Output is correct
57 Correct 6 ms 2028 KB Output is correct
58 Correct 7 ms 1900 KB Output is correct
59 Correct 11 ms 1772 KB Output is correct
60 Correct 9 ms 1900 KB Output is correct
61 Correct 12 ms 2412 KB Output is correct
62 Correct 44 ms 10604 KB Output is correct
63 Correct 33 ms 5868 KB Output is correct
64 Correct 33 ms 5996 KB Output is correct
65 Correct 37 ms 5868 KB Output is correct
66 Correct 39 ms 5996 KB Output is correct
67 Correct 39 ms 5996 KB Output is correct