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Submission #233334

# Submission time Handle Problem Language Result Execution time Memory
233334 2020-05-20T09:14:43 Z kshitij_sodani Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 220 ms 109516 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
int n,m;
int aa,bb;
const int ss=7;
vector<pair<pair<int,int>,int>> adj[30001][ss];//((index,power),dist)
int dist[30001][ss];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n>>m;
	int st;
	int endd;
	memset(dist,-1,sizeof(dist));
	for(int j=0;j<m;j++){
		cin>>aa>>bb;
		if(j==0){
			st=aa;
		}
		if(j==1){
			endd=aa;
		}
		if(bb>=ss){
			for(int i=aa+bb;i<n;i+=bb){
				adj[aa][0].pb({{i,0},(i-aa)/bb});
			}
			for(int i=aa-bb;i>=0;i-=bb){
				adj[aa][0].pb({{i,0},(aa-i)/bb});
			}
		}
		else{
			adj[aa][0].pb({{aa,bb},0});
		//	adj[aa][bb].pb({{aa,0},0});
		}
	}
	/*for(int i=0;i<n;i++){
		for(int j=1;j<ss;j++){
			if(i+j<n){
				adj[i][j].pb({{i+j,j},1});
			}
			if(i-j>=0 and i-j<n){
				adj[i][j].pb({{i-j,j},1});
			}
			adj[i][j].pb({{i,0},0});

		}
	}*/
	priority_queue<pair<int,pair<int,int>>> ac;
	ac.push({0,{st,0}});
	dist[st][0]=0;
	while(ac.size()){
		pair<int,pair<int,int>> no=ac.top();
		ac.pop();
		no.a=-no.a;
		if(dist[no.b.a][no.b.b]<no.a){
			continue;
		}
	//	cout<<no.b.a<<","<<no.b.b<<","<<no.a<<endl;
		for(auto j:adj[no.b.a][no.b.b]){
			if(dist[j.a.a][j.a.b]==-1 or dist[j.a.a][j.a.b]>dist[no.b.a][no.b.b]+j.b){
				dist[j.a.a][j.a.b]=dist[no.b.a][no.b.b]+j.b;
				ac.push({-dist[j.a.a][j.a.b],{j.a}});
			}
		}
		if(no.b.b>0){
			if(no.b.a+no.b.b<n){
				if(dist[no.b.a+no.b.b][no.b.b]==-1 or dist[no.b.a+no.b.b][no.b.b]>dist[no.b.a][no.b.b]+1){
					dist[no.b.a+no.b.b][no.b.b]=dist[no.b.a][no.b.b]+1;
					ac.push({-dist[no.b.a+no.b.b][no.b.b],{no.b.a+no.b.b,no.b.b}});
				}
			}
			if(no.b.a-no.b.b>=0){
				if(dist[no.b.a-no.b.b][no.b.b]==-1 or dist[no.b.a-no.b.b][no.b.b]>dist[no.b.a][no.b.b]+1){
					dist[no.b.a-no.b.b][no.b.b]=dist[no.b.a][no.b.b]+1;
					ac.push({-dist[no.b.a-no.b.b][no.b.b],{no.b.a-no.b.b,no.b.b}});
				}
			}
			if(dist[no.b.a][0]==-1 or dist[no.b.a][0]>dist[no.b.a][no.b.b]){
				dist[no.b.a][0]=dist[no.b.a][no.b.b];
				ac.push({-dist[no.b.a][0],{no.b.a,0}});
			}
		}


	}
	cout<<dist[endd][0]<<endl;








	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:56:13: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dist[st][0]=0;
  ~~~~~~~~~~~^~
skyscraper.cpp:92:20: warning: 'endd' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<dist[endd][0]<<endl;
                    ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6016 KB Output is correct
2 Correct 8 ms 6016 KB Output is correct
3 Correct 7 ms 6144 KB Output is correct
4 Correct 8 ms 6144 KB Output is correct
5 Correct 10 ms 6016 KB Output is correct
6 Correct 8 ms 6016 KB Output is correct
7 Correct 8 ms 6144 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6144 KB Output is correct
2 Correct 7 ms 6016 KB Output is correct
3 Correct 8 ms 6016 KB Output is correct
4 Correct 8 ms 6016 KB Output is correct
5 Correct 8 ms 6016 KB Output is correct
6 Correct 8 ms 6144 KB Output is correct
7 Correct 8 ms 6016 KB Output is correct
8 Correct 8 ms 6016 KB Output is correct
9 Correct 8 ms 6016 KB Output is correct
10 Correct 8 ms 6144 KB Output is correct
11 Correct 9 ms 6144 KB Output is correct
12 Correct 8 ms 6144 KB Output is correct
13 Correct 8 ms 6144 KB Output is correct
14 Correct 8 ms 6144 KB Output is correct
15 Correct 8 ms 6144 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 6016 KB Output is correct
2 Correct 7 ms 6016 KB Output is correct
3 Correct 8 ms 6144 KB Output is correct
4 Correct 8 ms 6016 KB Output is correct
5 Correct 9 ms 6016 KB Output is correct
6 Correct 8 ms 6016 KB Output is correct
7 Correct 8 ms 6016 KB Output is correct
8 Correct 8 ms 6016 KB Output is correct
9 Correct 8 ms 6016 KB Output is correct
10 Correct 9 ms 6144 KB Output is correct
11 Correct 8 ms 6144 KB Output is correct
12 Correct 8 ms 6144 KB Output is correct
13 Correct 8 ms 6144 KB Output is correct
14 Correct 8 ms 6144 KB Output is correct
15 Correct 9 ms 6144 KB Output is correct
16 Correct 8 ms 6144 KB Output is correct
17 Correct 10 ms 6272 KB Output is correct
18 Correct 8 ms 6144 KB Output is correct
19 Correct 8 ms 6144 KB Output is correct
20 Correct 8 ms 6144 KB Output is correct
21 Correct 8 ms 6144 KB Output is correct
22 Correct 8 ms 6144 KB Output is correct
23 Correct 9 ms 6144 KB Output is correct
24 Correct 9 ms 6272 KB Output is correct
25 Correct 8 ms 6144 KB Output is correct
26 Correct 8 ms 6272 KB Output is correct
27 Correct 9 ms 6272 KB Output is correct
28 Correct 9 ms 6272 KB Output is correct
29 Correct 10 ms 7168 KB Output is correct
30 Correct 9 ms 6400 KB Output is correct
31 Correct 10 ms 6656 KB Output is correct
32 Correct 9 ms 6400 KB Output is correct
33 Correct 12 ms 8064 KB Output is correct
34 Correct 13 ms 8064 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 6016 KB Output is correct
2 Correct 8 ms 6144 KB Output is correct
3 Correct 8 ms 6016 KB Output is correct
4 Correct 8 ms 6144 KB Output is correct
5 Correct 8 ms 6016 KB Output is correct
6 Correct 8 ms 6016 KB Output is correct
7 Correct 8 ms 6144 KB Output is correct
8 Correct 8 ms 6144 KB Output is correct
9 Correct 8 ms 6144 KB Output is correct
10 Correct 8 ms 6144 KB Output is correct
11 Correct 9 ms 6144 KB Output is correct
12 Correct 8 ms 6144 KB Output is correct
13 Correct 8 ms 6144 KB Output is correct
14 Correct 8 ms 6144 KB Output is correct
15 Correct 8 ms 6144 KB Output is correct
16 Correct 10 ms 6144 KB Output is correct
17 Correct 9 ms 6400 KB Output is correct
18 Correct 8 ms 6144 KB Output is correct
19 Correct 8 ms 6144 KB Output is correct
20 Correct 9 ms 6144 KB Output is correct
21 Correct 8 ms 6144 KB Output is correct
22 Correct 8 ms 6144 KB Output is correct
23 Correct 9 ms 6144 KB Output is correct
24 Correct 10 ms 6272 KB Output is correct
25 Correct 9 ms 6144 KB Output is correct
26 Correct 9 ms 6272 KB Output is correct
27 Correct 9 ms 6144 KB Output is correct
28 Correct 9 ms 6272 KB Output is correct
29 Correct 10 ms 7168 KB Output is correct
30 Correct 9 ms 6400 KB Output is correct
31 Correct 10 ms 6656 KB Output is correct
32 Correct 9 ms 6400 KB Output is correct
33 Correct 13 ms 8064 KB Output is correct
34 Correct 13 ms 8064 KB Output is correct
35 Correct 18 ms 7680 KB Output is correct
36 Correct 10 ms 6272 KB Output is correct
37 Correct 19 ms 9600 KB Output is correct
38 Correct 22 ms 8960 KB Output is correct
39 Correct 21 ms 8832 KB Output is correct
40 Correct 22 ms 8832 KB Output is correct
41 Correct 21 ms 8704 KB Output is correct
42 Correct 14 ms 6784 KB Output is correct
43 Correct 13 ms 6652 KB Output is correct
44 Correct 13 ms 6612 KB Output is correct
45 Correct 24 ms 13056 KB Output is correct
46 Correct 23 ms 13056 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 6016 KB Output is correct
2 Correct 8 ms 6016 KB Output is correct
3 Correct 8 ms 6016 KB Output is correct
4 Correct 8 ms 6144 KB Output is correct
5 Correct 9 ms 6016 KB Output is correct
6 Correct 8 ms 6016 KB Output is correct
7 Correct 8 ms 6144 KB Output is correct
8 Correct 8 ms 6016 KB Output is correct
9 Correct 8 ms 6144 KB Output is correct
10 Correct 9 ms 6144 KB Output is correct
11 Correct 8 ms 6144 KB Output is correct
12 Correct 8 ms 6144 KB Output is correct
13 Correct 8 ms 6144 KB Output is correct
14 Correct 8 ms 6144 KB Output is correct
15 Correct 8 ms 6144 KB Output is correct
16 Correct 10 ms 6144 KB Output is correct
17 Correct 9 ms 6272 KB Output is correct
18 Correct 10 ms 6144 KB Output is correct
19 Correct 8 ms 6144 KB Output is correct
20 Correct 8 ms 6144 KB Output is correct
21 Correct 8 ms 6144 KB Output is correct
22 Correct 8 ms 6144 KB Output is correct
23 Correct 9 ms 6144 KB Output is correct
24 Correct 13 ms 6272 KB Output is correct
25 Correct 9 ms 6144 KB Output is correct
26 Correct 9 ms 6272 KB Output is correct
27 Correct 10 ms 6144 KB Output is correct
28 Correct 9 ms 6272 KB Output is correct
29 Correct 10 ms 7168 KB Output is correct
30 Correct 8 ms 6400 KB Output is correct
31 Correct 11 ms 6656 KB Output is correct
32 Correct 9 ms 6400 KB Output is correct
33 Correct 15 ms 8064 KB Output is correct
34 Correct 12 ms 8064 KB Output is correct
35 Correct 17 ms 7680 KB Output is correct
36 Correct 11 ms 6272 KB Output is correct
37 Correct 21 ms 9600 KB Output is correct
38 Correct 22 ms 8960 KB Output is correct
39 Correct 22 ms 8832 KB Output is correct
40 Correct 23 ms 8832 KB Output is correct
41 Correct 21 ms 8832 KB Output is correct
42 Correct 15 ms 6724 KB Output is correct
43 Correct 14 ms 6720 KB Output is correct
44 Correct 14 ms 6612 KB Output is correct
45 Correct 25 ms 13056 KB Output is correct
46 Correct 27 ms 13072 KB Output is correct
47 Correct 63 ms 19192 KB Output is correct
48 Correct 24 ms 8936 KB Output is correct
49 Correct 18 ms 8064 KB Output is correct
50 Correct 17 ms 8064 KB Output is correct
51 Correct 57 ms 10596 KB Output is correct
52 Correct 58 ms 10868 KB Output is correct
53 Correct 23 ms 6272 KB Output is correct
54 Correct 10 ms 6144 KB Output is correct
55 Correct 11 ms 6016 KB Output is correct
56 Correct 23 ms 6984 KB Output is correct
57 Correct 150 ms 55944 KB Output is correct
58 Correct 17 ms 7036 KB Output is correct
59 Correct 21 ms 7676 KB Output is correct
60 Correct 22 ms 8564 KB Output is correct
61 Correct 21 ms 7360 KB Output is correct
62 Correct 43 ms 12264 KB Output is correct
63 Correct 80 ms 41140 KB Output is correct
64 Correct 98 ms 54324 KB Output is correct
65 Correct 129 ms 63512 KB Output is correct
66 Correct 220 ms 106472 KB Output is correct
67 Correct 217 ms 109516 KB Output is correct