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Submission #391278

# Submission time Handle Problem Language Result Execution time Memory
391278 2021-04-18T11:41:55 Z Blagojce Jakarta Skyscrapers (APIO15_skyscraper) C++11
100 / 100
 80 ms 7828 KB 
#include <bits/stdc++.h>
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)


using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
const int i_inf = 1e9;
const ll inf = 1e18;
const ll mod = 1e9+7;
const ld eps = 1e-13;
const ld pi  = 3.14159265359;

mt19937 _rand(time(NULL));
clock_t z;

const int mxn = 4e4;

int n, m;

ll b[mxn], p[mxn];
ll dist[mxn];

vector<ll> g[mxn];
bool vis[mxn];


bool con[300][mxn];

void solve(){
	cin >> n >> m;
	fr(i, 0, m){
		cin >> b[i] >> p[i];
		
		if(p[i] < 300){
			if(!con[p[i]][b[i]]){
				con[p[i]][b[i]] = true;
				g[b[i]].pb(p[i]);
			}
		}
		else{
			g[b[i]].pb(p[i]);
		}
	}
	fr(i, 0, n) dist[i] = inf;
	
	pq <pair<ll,int> > Q;
	Q.push({0, b[0]});
	dist[b[0]] = 0;
	while(!Q.empty()){
		int c = Q.top().nd;
		ll w  = Q.top().st;
		Q.pop();
		if(c == b[1]){
			cout<<-w<<endl;
			return;
		}
		if(vis[c]) continue;
		vis[c] = true;
		for(auto u : g[c]){
			for(int i = c + u; i < n; i += u){
				if(dist[c] + (i-c)/u < dist[i]){
					dist[i] = dist[c] + (i-c)/u;
					Q.push({-dist[i], i});
				}
				if(u < 300 && con[u][i]) break;
				
			}
			for(int i = c - u; i >=0; i -= u){
				if(dist[c] + (c-i)/u < dist[i]){
					dist[i] = dist[c] + (c-i)/u;
					Q.push({-dist[i], i});
				}
				if(u < 300 && con[u][i]) break;
			}
		}
	}
	cout<<-1<<endl;
	
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	solve();
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1232 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 2 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1356 KB Output is correct
9 Correct 1 ms 1356 KB Output is correct
10 Correct 2 ms 1612 KB Output is correct
11 Correct 2 ms 1740 KB Output is correct
12 Correct 2 ms 1356 KB Output is correct
13 Correct 1 ms 1228 KB Output is correct
14 Correct 2 ms 1612 KB Output is correct
15 Correct 2 ms 1612 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1284 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 2 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 2 ms 1356 KB Output is correct
9 Correct 1 ms 1300 KB Output is correct
10 Correct 1 ms 1612 KB Output is correct
11 Correct 2 ms 1740 KB Output is correct
12 Correct 1 ms 1356 KB Output is correct
13 Correct 1 ms 1228 KB Output is correct
14 Correct 2 ms 1612 KB Output is correct
15 Correct 2 ms 1612 KB Output is correct
16 Correct 2 ms 2052 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 2 ms 1868 KB Output is correct
19 Correct 1 ms 1612 KB Output is correct
20 Correct 2 ms 1356 KB Output is correct
21 Correct 2 ms 1740 KB Output is correct
22 Correct 1 ms 1612 KB Output is correct
23 Correct 2 ms 1868 KB Output is correct
24 Correct 3 ms 2252 KB Output is correct
25 Correct 2 ms 1356 KB Output is correct
26 Correct 2 ms 1740 KB Output is correct
27 Correct 2 ms 1612 KB Output is correct
28 Correct 2 ms 1996 KB Output is correct
29 Correct 3 ms 1640 KB Output is correct
30 Correct 2 ms 1356 KB Output is correct
31 Correct 2 ms 1484 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 3 ms 1868 KB Output is correct
34 Correct 4 ms 1996 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 2 ms 1228 KB Output is correct
5 Correct 2 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1356 KB Output is correct
9 Correct 1 ms 1356 KB Output is correct
10 Correct 2 ms 1612 KB Output is correct
11 Correct 2 ms 1744 KB Output is correct
12 Correct 2 ms 1356 KB Output is correct
13 Correct 1 ms 1228 KB Output is correct
14 Correct 2 ms 1612 KB Output is correct
15 Correct 2 ms 1612 KB Output is correct
16 Correct 2 ms 2124 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 2 ms 1868 KB Output is correct
19 Correct 2 ms 1612 KB Output is correct
20 Correct 2 ms 1356 KB Output is correct
21 Correct 3 ms 1740 KB Output is correct
22 Correct 2 ms 1612 KB Output is correct
23 Correct 2 ms 1868 KB Output is correct
24 Correct 3 ms 2252 KB Output is correct
25 Correct 2 ms 1360 KB Output is correct
26 Correct 2 ms 1748 KB Output is correct
27 Correct 2 ms 1612 KB Output is correct
28 Correct 2 ms 1996 KB Output is correct
29 Correct 3 ms 1612 KB Output is correct
30 Correct 2 ms 1356 KB Output is correct
31 Correct 2 ms 1484 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 4 ms 1872 KB Output is correct
34 Correct 3 ms 1996 KB Output is correct
35 Correct 9 ms 3660 KB Output is correct
36 Correct 3 ms 2636 KB Output is correct
37 Correct 7 ms 3788 KB Output is correct
38 Correct 11 ms 4044 KB Output is correct
39 Correct 9 ms 3916 KB Output is correct
40 Correct 10 ms 4044 KB Output is correct
41 Correct 10 ms 4044 KB Output is correct
42 Correct 6 ms 2252 KB Output is correct
43 Correct 6 ms 1996 KB Output is correct
44 Correct 7 ms 1740 KB Output is correct
45 Correct 13 ms 3380 KB Output is correct
46 Correct 12 ms 3448 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1356 KB Output is correct
9 Correct 1 ms 1356 KB Output is correct
10 Correct 1 ms 1612 KB Output is correct
11 Correct 2 ms 1740 KB Output is correct
12 Correct 1 ms 1356 KB Output is correct
13 Correct 1 ms 1228 KB Output is correct
14 Correct 2 ms 1612 KB Output is correct
15 Correct 3 ms 1612 KB Output is correct
16 Correct 2 ms 2124 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 2 ms 1868 KB Output is correct
19 Correct 1 ms 1612 KB Output is correct
20 Correct 2 ms 1356 KB Output is correct
21 Correct 2 ms 1740 KB Output is correct
22 Correct 1 ms 1612 KB Output is correct
23 Correct 3 ms 1868 KB Output is correct
24 Correct 3 ms 2252 KB Output is correct
25 Correct 2 ms 1356 KB Output is correct
26 Correct 2 ms 1740 KB Output is correct
27 Correct 2 ms 1612 KB Output is correct
28 Correct 2 ms 1996 KB Output is correct
29 Correct 3 ms 1612 KB Output is correct
30 Correct 2 ms 1356 KB Output is correct
31 Correct 2 ms 1484 KB Output is correct
32 Correct 2 ms 1484 KB Output is correct
33 Correct 4 ms 1868 KB Output is correct
34 Correct 3 ms 1996 KB Output is correct
35 Correct 9 ms 3660 KB Output is correct
36 Correct 3 ms 2636 KB Output is correct
37 Correct 8 ms 3788 KB Output is correct
38 Correct 12 ms 4044 KB Output is correct
39 Correct 9 ms 3916 KB Output is correct
40 Correct 9 ms 4048 KB Output is correct
41 Correct 10 ms 4044 KB Output is correct
42 Correct 6 ms 2252 KB Output is correct
43 Correct 6 ms 2060 KB Output is correct
44 Correct 7 ms 1740 KB Output is correct
45 Correct 11 ms 3372 KB Output is correct
46 Correct 12 ms 3404 KB Output is correct
47 Correct 13 ms 6864 KB Output is correct
48 Correct 8 ms 3292 KB Output is correct
49 Correct 7 ms 2892 KB Output is correct
50 Correct 6 ms 2764 KB Output is correct
51 Correct 18 ms 4820 KB Output is correct
52 Correct 21 ms 4936 KB Output is correct
53 Correct 10 ms 3020 KB Output is correct
54 Correct 3 ms 1872 KB Output is correct
55 Correct 3 ms 1872 KB Output is correct
56 Correct 10 ms 2892 KB Output is correct
57 Correct 3 ms 2760 KB Output is correct
58 Correct 8 ms 2384 KB Output is correct
59 Correct 9 ms 2812 KB Output is correct
60 Correct 9 ms 3540 KB Output is correct
61 Correct 11 ms 2956 KB Output is correct
62 Correct 15 ms 4044 KB Output is correct
63 Correct 39 ms 5312 KB Output is correct
64 Correct 39 ms 5192 KB Output is correct
65 Correct 52 ms 5824 KB Output is correct
66 Correct 80 ms 7828 KB Output is correct
67 Correct 71 ms 7788 KB Output is correct