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Submission #233313

# Submission time Handle Problem Language Result Execution time Memory
233313 2020-05-20T09:01:15 Z kshitij_sodani Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 955 ms 172148 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=150;
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 72 ms 123640 KB Output is correct
2 Correct 72 ms 123640 KB Output is correct
3 Correct 73 ms 123640 KB Output is correct
4 Correct 72 ms 123640 KB Output is correct
5 Correct 75 ms 123640 KB Output is correct
6 Correct 74 ms 123644 KB Output is correct
7 Correct 72 ms 123640 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 123640 KB Output is correct
2 Correct 74 ms 123640 KB Output is correct
3 Correct 73 ms 123640 KB Output is correct
4 Correct 73 ms 123640 KB Output is correct
5 Correct 74 ms 123640 KB Output is correct
6 Correct 73 ms 123640 KB Output is correct
7 Correct 73 ms 123640 KB Output is correct
8 Correct 72 ms 123640 KB Output is correct
9 Correct 73 ms 123640 KB Output is correct
10 Correct 74 ms 123640 KB Output is correct
11 Correct 73 ms 123640 KB Output is correct
12 Correct 73 ms 123640 KB Output is correct
13 Correct 74 ms 123768 KB Output is correct
14 Correct 74 ms 123768 KB Output is correct
15 Correct 76 ms 123640 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 123640 KB Output is correct
2 Correct 72 ms 123644 KB Output is correct
3 Correct 72 ms 123640 KB Output is correct
4 Correct 71 ms 123640 KB Output is correct
5 Correct 71 ms 123644 KB Output is correct
6 Correct 72 ms 123640 KB Output is correct
7 Correct 71 ms 123640 KB Output is correct
8 Correct 72 ms 123640 KB Output is correct
9 Correct 73 ms 123640 KB Output is correct
10 Correct 74 ms 123640 KB Output is correct
11 Correct 76 ms 123644 KB Output is correct
12 Correct 75 ms 123640 KB Output is correct
13 Correct 72 ms 123768 KB Output is correct
14 Correct 83 ms 123640 KB Output is correct
15 Correct 74 ms 123640 KB Output is correct
16 Correct 73 ms 123640 KB Output is correct
17 Correct 75 ms 123768 KB Output is correct
18 Correct 72 ms 123644 KB Output is correct
19 Correct 72 ms 123640 KB Output is correct
20 Correct 74 ms 123640 KB Output is correct
21 Correct 80 ms 123668 KB Output is correct
22 Correct 72 ms 123640 KB Output is correct
23 Correct 75 ms 123652 KB Output is correct
24 Correct 76 ms 123640 KB Output is correct
25 Correct 76 ms 123640 KB Output is correct
26 Correct 74 ms 123640 KB Output is correct
27 Correct 74 ms 123640 KB Output is correct
28 Correct 75 ms 123640 KB Output is correct
29 Correct 83 ms 123640 KB Output is correct
30 Correct 76 ms 123640 KB Output is correct
31 Correct 80 ms 123640 KB Output is correct
32 Correct 78 ms 123640 KB Output is correct
33 Correct 91 ms 123768 KB Output is correct
34 Correct 98 ms 123640 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 123640 KB Output is correct
2 Correct 72 ms 123640 KB Output is correct
3 Correct 73 ms 123640 KB Output is correct
4 Correct 74 ms 123768 KB Output is correct
5 Correct 73 ms 123640 KB Output is correct
6 Correct 72 ms 123640 KB Output is correct
7 Correct 72 ms 123640 KB Output is correct
8 Correct 73 ms 123640 KB Output is correct
9 Correct 72 ms 123640 KB Output is correct
10 Correct 72 ms 123640 KB Output is correct
11 Correct 75 ms 123640 KB Output is correct
12 Correct 77 ms 123768 KB Output is correct
13 Correct 72 ms 123640 KB Output is correct
14 Correct 74 ms 123768 KB Output is correct
15 Correct 77 ms 123800 KB Output is correct
16 Correct 75 ms 123640 KB Output is correct
17 Correct 75 ms 123768 KB Output is correct
18 Correct 76 ms 123640 KB Output is correct
19 Correct 72 ms 123640 KB Output is correct
20 Correct 75 ms 123644 KB Output is correct
21 Correct 74 ms 123640 KB Output is correct
22 Correct 73 ms 123640 KB Output is correct
23 Correct 74 ms 123644 KB Output is correct
24 Correct 76 ms 123644 KB Output is correct
25 Correct 73 ms 123640 KB Output is correct
26 Correct 74 ms 123640 KB Output is correct
27 Correct 74 ms 123640 KB Output is correct
28 Correct 74 ms 123768 KB Output is correct
29 Correct 82 ms 123640 KB Output is correct
30 Correct 74 ms 123640 KB Output is correct
31 Correct 78 ms 123640 KB Output is correct
32 Correct 77 ms 123640 KB Output is correct
33 Correct 89 ms 123768 KB Output is correct
34 Correct 89 ms 123640 KB Output is correct
35 Correct 89 ms 124280 KB Output is correct
36 Correct 77 ms 123768 KB Output is correct
37 Correct 100 ms 124920 KB Output is correct
38 Correct 99 ms 124792 KB Output is correct
39 Correct 100 ms 124848 KB Output is correct
40 Correct 101 ms 124792 KB Output is correct
41 Correct 100 ms 124920 KB Output is correct
42 Correct 79 ms 124216 KB Output is correct
43 Correct 79 ms 124148 KB Output is correct
44 Correct 79 ms 124108 KB Output is correct
45 Correct 130 ms 127096 KB Output is correct
46 Correct 127 ms 126968 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 123640 KB Output is correct
2 Correct 71 ms 123640 KB Output is correct
3 Correct 72 ms 123640 KB Output is correct
4 Correct 75 ms 123640 KB Output is correct
5 Correct 72 ms 123640 KB Output is correct
6 Correct 73 ms 123668 KB Output is correct
7 Correct 73 ms 123596 KB Output is correct
8 Correct 72 ms 123640 KB Output is correct
9 Correct 73 ms 123640 KB Output is correct
10 Correct 72 ms 123640 KB Output is correct
11 Correct 74 ms 123640 KB Output is correct
12 Correct 74 ms 123644 KB Output is correct
13 Correct 74 ms 123644 KB Output is correct
14 Correct 74 ms 123640 KB Output is correct
15 Correct 74 ms 123640 KB Output is correct
16 Correct 73 ms 123640 KB Output is correct
17 Correct 76 ms 123768 KB Output is correct
18 Correct 72 ms 123640 KB Output is correct
19 Correct 74 ms 123640 KB Output is correct
20 Correct 74 ms 123768 KB Output is correct
21 Correct 71 ms 123640 KB Output is correct
22 Correct 75 ms 123640 KB Output is correct
23 Correct 80 ms 123640 KB Output is correct
24 Correct 76 ms 123640 KB Output is correct
25 Correct 73 ms 123640 KB Output is correct
26 Correct 74 ms 123640 KB Output is correct
27 Correct 74 ms 123640 KB Output is correct
28 Correct 75 ms 123640 KB Output is correct
29 Correct 81 ms 123768 KB Output is correct
30 Correct 75 ms 123644 KB Output is correct
31 Correct 76 ms 123640 KB Output is correct
32 Correct 75 ms 123640 KB Output is correct
33 Correct 89 ms 123768 KB Output is correct
34 Correct 91 ms 123768 KB Output is correct
35 Correct 89 ms 124280 KB Output is correct
36 Correct 75 ms 123640 KB Output is correct
37 Correct 99 ms 124920 KB Output is correct
38 Correct 99 ms 124792 KB Output is correct
39 Correct 98 ms 124792 KB Output is correct
40 Correct 101 ms 124792 KB Output is correct
41 Correct 100 ms 124792 KB Output is correct
42 Correct 80 ms 124216 KB Output is correct
43 Correct 78 ms 124216 KB Output is correct
44 Correct 79 ms 124108 KB Output is correct
45 Correct 130 ms 127096 KB Output is correct
46 Correct 132 ms 126968 KB Output is correct
47 Correct 199 ms 130040 KB Output is correct
48 Correct 85 ms 125176 KB Output is correct
49 Correct 83 ms 124920 KB Output is correct
50 Correct 82 ms 124792 KB Output is correct
51 Correct 140 ms 126520 KB Output is correct
52 Correct 145 ms 126520 KB Output is correct
53 Correct 88 ms 123768 KB Output is correct
54 Correct 74 ms 123640 KB Output is correct
55 Correct 76 ms 123640 KB Output is correct
56 Correct 88 ms 124512 KB Output is correct
57 Correct 180 ms 123644 KB Output is correct
58 Correct 87 ms 124148 KB Output is correct
59 Correct 90 ms 124148 KB Output is correct
60 Correct 100 ms 124788 KB Output is correct
61 Correct 94 ms 124472 KB Output is correct
62 Correct 134 ms 127096 KB Output is correct
63 Correct 163 ms 158776 KB Output is correct
64 Correct 186 ms 171956 KB Output is correct
65 Correct 396 ms 172148 KB Output is correct
66 Correct 955 ms 164400 KB Output is correct
67 Correct 952 ms 164568 KB Output is correct