oj.uz

Submission #536021

# Submission time Handle Problem Language Result Execution time Memory
536021 2022-03-12T06:49:46 Z PoPularPlusPlus Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 193 ms 76740 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}
 
//freopen("problemname.in", "r", stdin);
//freopen("problemname.out", "w", stdout);
 
void solve(){
	int n , m;
	cin >> n >> m;
	int rt = 1;
	vector<pair<int,int>> adj[n + 1][rt+1];
	vector<int> v[n];
	int s , e;
	for(int i = 0; i < m; i++){
		int b , p;
		cin >> b >> p;
		if(i == 0)s = b;
		if(i == 1)e = b;
		if(p <= rt)
			v[b].pb(p);
		if(p > rt){
			int pos = b , dis = 0;
			while(pos - p >= 0){
				pos -= p;
				dis++;
				adj[b][0].pb(mp(pos , dis));
			}
			pos = b;
			dis = 0;
			while(pos + p < n){
				pos += p;
				dis++;
				adj[b][0].pb(mp(pos , dis));
			}
		}
	}
	for(int i = 0; i < n; i++){
		for(int j = 1; j <= rt; j++){
			if(i - j >= 0){
				adj[i][j].pb(mp(i-j , 1));
			}
			if(i + j < n){
				adj[i][j].pb(mp(i+j , 1));
			}
		}
	}
	int dis[n][rt+1];
	for(int i = 0; i < n; i++){
		for(int j = 0; j <= rt; j++){
			dis[i][j] = 1e9;
		}
	}
	priority_queue< pair<int,pair<int,int>> , vector<pair<int,pair<int,int>>> , greater<pair<int,pair<int,int>>> > pq;
	dis[s][0] = 0;
	pq.push(mp(0 , mp(s , 0)));
	while(pq.size()){
		int di = pq.top().vf , pos = pq.top().vs.vf , pow = pq.top().vs.vs;
		//cout << di << ' ' << pos << ' ' << pow << '\n';
		pq.pop();
		//cout << pos << ' ' << pow << endl;
		if(dis[pos][pow] < di)continue;
		if(pow == 0){
			for(int i : v[pos]){
				pq.push(mp(di , mp(pos , i)));
			}
		}
		for(auto i : adj[pos][pow]){
			if(dis[i.vf][pow] > di + i.vs){
				dis[i.vf][pow] = di + i.vs;
				if(pow != 0 && dis[i.vf][0] > di + i.vs){
					dis[i.vf][0] = di + i.vs;
					pq.push(mp(di + i.vs,mp(i.vf , 0)));
				}
				pq.push(mp(di + i.vs , mp(i.vf , pow)));
			}
		}
	}
	cout << (dis[e][0] == 1e9 ? -1 : dis[e][0]) << '\n';
}
 
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
	//int t;cin >> t;while(t--)
	solve();
	return 0;
}

Compilation message

skyscraper.cpp: In function 'void solve()':
skyscraper.cpp:8:30: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
    8 | #define mp(a,b) make_pair(a,b)
      |                              ^
skyscraper.cpp:27:6: note: 's' was declared here
   27 |  int s , e;
      |      ^
skyscraper.cpp:92:19: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
   92 |  cout << (dis[e][0] == 1e9 ? -1 : dis[e][0]) << '\n';
      |           ~~~~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 276 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 236 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 3 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 1 ms 596 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 3 ms 1236 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 2 ms 980 KB Output is correct
32 Correct 2 ms 724 KB Output is correct
33 Correct 5 ms 2004 KB Output is correct
34 Correct 5 ms 1964 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 3 ms 1236 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 2 ms 980 KB Output is correct
32 Correct 2 ms 724 KB Output is correct
33 Correct 5 ms 2004 KB Output is correct
34 Correct 6 ms 1964 KB Output is correct
35 Correct 12 ms 1824 KB Output is correct
36 Correct 2 ms 596 KB Output is correct
37 Correct 11 ms 3496 KB Output is correct
38 Correct 11 ms 2900 KB Output is correct
39 Correct 15 ms 2920 KB Output is correct
40 Correct 11 ms 2924 KB Output is correct
41 Correct 12 ms 2928 KB Output is correct
42 Correct 8 ms 1236 KB Output is correct
43 Correct 9 ms 1172 KB Output is correct
44 Correct 13 ms 1172 KB Output is correct
45 Correct 16 ms 5384 KB Output is correct
46 Correct 15 ms 5376 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 288 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 2 ms 720 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 2 ms 596 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 3 ms 1236 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 2 ms 980 KB Output is correct
32 Correct 2 ms 724 KB Output is correct
33 Correct 5 ms 2004 KB Output is correct
34 Correct 5 ms 2004 KB Output is correct
35 Correct 11 ms 1724 KB Output is correct
36 Correct 2 ms 596 KB Output is correct
37 Correct 10 ms 3412 KB Output is correct
38 Correct 10 ms 2772 KB Output is correct
39 Correct 11 ms 2900 KB Output is correct
40 Correct 11 ms 2900 KB Output is correct
41 Correct 19 ms 2904 KB Output is correct
42 Correct 8 ms 1236 KB Output is correct
43 Correct 7 ms 1172 KB Output is correct
44 Correct 8 ms 1172 KB Output is correct
45 Correct 14 ms 5460 KB Output is correct
46 Correct 17 ms 5340 KB Output is correct
47 Correct 44 ms 12008 KB Output is correct
48 Correct 18 ms 4948 KB Output is correct
49 Correct 12 ms 4564 KB Output is correct
50 Correct 11 ms 4864 KB Output is correct
51 Correct 38 ms 7536 KB Output is correct
52 Correct 51 ms 7772 KB Output is correct
53 Correct 17 ms 4376 KB Output is correct
54 Correct 8 ms 4116 KB Output is correct
55 Correct 7 ms 4116 KB Output is correct
56 Correct 15 ms 4488 KB Output is correct
57 Correct 152 ms 62896 KB Output is correct
58 Correct 17 ms 4620 KB Output is correct
59 Correct 19 ms 5156 KB Output is correct
60 Correct 18 ms 5784 KB Output is correct
61 Correct 25 ms 4924 KB Output is correct
62 Correct 32 ms 8220 KB Output is correct
63 Correct 82 ms 27784 KB Output is correct
64 Correct 89 ms 35656 KB Output is correct
65 Correct 107 ms 43248 KB Output is correct
66 Correct 185 ms 75104 KB Output is correct
67 Correct 193 ms 76740 KB Output is correct