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Submission #208759

# Submission time Handle Problem Language Result Execution time Memory
208759 2020-03-12T06:36:42 Z YJU Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 239472 KB 
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
typedef pair<ll,ll> pll;
typedef long double ld;
const ll MOD=1e9+7;
const ll N=3e4+5;
const ll R=2e3+5;
const ld pi=3.14159265359;
const ll INF=(1LL<<30);
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(a) (ll)a.size()

ll n,m,b[N],p[N],vis[N],ti,x,y,dis[N],ch[N][R];
vector<ll> v[N];
vector<pll> ed[N];
priority_queue<pll,vector<pll>,greater<pll> > pq;

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n>>m;
	REP(i,m){
		cin>>b[i]>>p[i];
		v[b[i]].pb(p[i]);
	}
	REP(i,N)sort(v[i].rbegin(),v[i].rend()),v[i].resize(unique(v[i].begin(),v[i].end())-v[i].begin());
	memset(ch,-1,sizeof(ch));
	REP(i,N)dis[i]=INF;
	pq.push(mp(dis[b[0]]=0,b[0]));
	while(SZ(pq)){
		x=pq.top().Y;y=pq.top().X;pq.pop();
		if(dis[x]!=y)continue;
		++ti;
		for(ll step:v[x]){
			for(ll j=x+step,tt=1;j<n;j+=step,++tt){
				if(step<R&&ch[j][step]<=tt&&ch[j][step]!=-1)break;
				if(vis[j]==ti)continue;
				if(step<R)ch[j][step]=(~ch[j][step]?min(ch[j][step],tt):tt);
				vis[j]=ti;
				if(tt+dis[x]<dis[j])pq.push(mp(dis[j]=tt+dis[x],j));
			}
			for(ll j=x-step,tt=1;j>=0;j-=step,++tt){
				if(step<R&&ch[j][step]<=tt&&ch[j][step]!=-1)break;
				if(vis[j]==ti)continue;
				if(step<R)ch[j][step]=(~ch[j][step]?min(ch[j][step],tt):tt);
				vis[j]=ti;
				if(tt+dis[x]<dis[j])pq.push(mp(dis[j]=tt+dis[x],j));
			}
		}
		//if(dis[b[1]]!=INF){cout<<dis[b[1]]<<"\n";return 0;}
	}
	cout<<(dis[b[1]]==INF?-1:dis[b[1]])<<"\n";
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 237304 KB Output is correct
2 Correct 125 ms 237432 KB Output is correct
3 Correct 127 ms 237304 KB Output is correct
4 Correct 126 ms 237308 KB Output is correct
5 Correct 127 ms 237304 KB Output is correct
6 Correct 126 ms 237304 KB Output is correct
7 Correct 124 ms 237292 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 237344 KB Output is correct
2 Correct 126 ms 237340 KB Output is correct
3 Correct 123 ms 237304 KB Output is correct
4 Correct 124 ms 237356 KB Output is correct
5 Correct 121 ms 237304 KB Output is correct
6 Correct 121 ms 237304 KB Output is correct
7 Correct 125 ms 237304 KB Output is correct
8 Correct 127 ms 237304 KB Output is correct
9 Correct 125 ms 237304 KB Output is correct
10 Correct 128 ms 237304 KB Output is correct
11 Correct 129 ms 237304 KB Output is correct
12 Correct 126 ms 237304 KB Output is correct
13 Correct 126 ms 237304 KB Output is correct
14 Correct 126 ms 237304 KB Output is correct
15 Correct 129 ms 237304 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 237432 KB Output is correct
2 Correct 132 ms 237304 KB Output is correct
3 Correct 125 ms 237304 KB Output is correct
4 Correct 124 ms 237264 KB Output is correct
5 Correct 128 ms 237384 KB Output is correct
6 Correct 124 ms 237304 KB Output is correct
7 Correct 124 ms 237304 KB Output is correct
8 Correct 126 ms 237304 KB Output is correct
9 Correct 126 ms 237304 KB Output is correct
10 Correct 127 ms 237432 KB Output is correct
11 Correct 131 ms 237376 KB Output is correct
12 Correct 127 ms 237408 KB Output is correct
13 Correct 133 ms 237344 KB Output is correct
14 Correct 127 ms 237304 KB Output is correct
15 Correct 129 ms 237304 KB Output is correct
16 Correct 123 ms 237308 KB Output is correct
17 Correct 125 ms 237432 KB Output is correct
18 Correct 127 ms 237432 KB Output is correct
19 Correct 126 ms 237384 KB Output is correct
20 Correct 152 ms 237432 KB Output is correct
21 Correct 125 ms 237304 KB Output is correct
22 Correct 129 ms 237304 KB Output is correct
23 Correct 129 ms 237432 KB Output is correct
24 Correct 129 ms 237432 KB Output is correct
25 Correct 128 ms 237432 KB Output is correct
26 Correct 130 ms 237432 KB Output is correct
27 Correct 123 ms 237432 KB Output is correct
28 Correct 122 ms 237436 KB Output is correct
29 Correct 127 ms 237420 KB Output is correct
30 Correct 125 ms 237432 KB Output is correct
31 Correct 124 ms 237432 KB Output is correct
32 Correct 123 ms 237432 KB Output is correct
33 Correct 126 ms 237432 KB Output is correct
34 Correct 129 ms 237588 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 237304 KB Output is correct
2 Correct 126 ms 237304 KB Output is correct
3 Correct 127 ms 237304 KB Output is correct
4 Correct 125 ms 237348 KB Output is correct
5 Correct 124 ms 237308 KB Output is correct
6 Correct 124 ms 237304 KB Output is correct
7 Correct 126 ms 237304 KB Output is correct
8 Correct 127 ms 237304 KB Output is correct
9 Correct 127 ms 237412 KB Output is correct
10 Correct 125 ms 237304 KB Output is correct
11 Correct 124 ms 237304 KB Output is correct
12 Correct 131 ms 237324 KB Output is correct
13 Correct 130 ms 237304 KB Output is correct
14 Correct 125 ms 237304 KB Output is correct
15 Correct 126 ms 237304 KB Output is correct
16 Correct 125 ms 237308 KB Output is correct
17 Correct 129 ms 237436 KB Output is correct
18 Correct 126 ms 237304 KB Output is correct
19 Correct 124 ms 237384 KB Output is correct
20 Correct 142 ms 237432 KB Output is correct
21 Correct 133 ms 237432 KB Output is correct
22 Correct 126 ms 237432 KB Output is correct
23 Correct 131 ms 237432 KB Output is correct
24 Correct 125 ms 237388 KB Output is correct
25 Correct 125 ms 237488 KB Output is correct
26 Correct 121 ms 237432 KB Output is correct
27 Correct 124 ms 237432 KB Output is correct
28 Correct 126 ms 237432 KB Output is correct
29 Correct 126 ms 237432 KB Output is correct
30 Correct 128 ms 237432 KB Output is correct
31 Correct 126 ms 237432 KB Output is correct
32 Correct 126 ms 237432 KB Output is correct
33 Correct 129 ms 237560 KB Output is correct
34 Correct 124 ms 237564 KB Output is correct
35 Correct 135 ms 237816 KB Output is correct
36 Correct 126 ms 237484 KB Output is correct
37 Correct 134 ms 237816 KB Output is correct
38 Correct 138 ms 237944 KB Output is correct
39 Correct 135 ms 237944 KB Output is correct
40 Correct 136 ms 237944 KB Output is correct
41 Correct 137 ms 237920 KB Output is correct
42 Correct 128 ms 237816 KB Output is correct
43 Correct 130 ms 237816 KB Output is correct
44 Correct 143 ms 237816 KB Output is correct
45 Correct 138 ms 237948 KB Output is correct
46 Correct 135 ms 237816 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 237304 KB Output is correct
2 Correct 122 ms 237364 KB Output is correct
3 Correct 124 ms 237364 KB Output is correct
4 Correct 124 ms 237304 KB Output is correct
5 Correct 121 ms 237304 KB Output is correct
6 Correct 126 ms 237304 KB Output is correct
7 Correct 126 ms 237264 KB Output is correct
8 Correct 124 ms 237432 KB Output is correct
9 Correct 124 ms 237304 KB Output is correct
10 Correct 127 ms 237304 KB Output is correct
11 Correct 127 ms 237304 KB Output is correct
12 Correct 135 ms 237304 KB Output is correct
13 Correct 128 ms 237304 KB Output is correct
14 Correct 125 ms 237304 KB Output is correct
15 Correct 126 ms 237304 KB Output is correct
16 Correct 130 ms 237436 KB Output is correct
17 Correct 125 ms 237432 KB Output is correct
18 Correct 123 ms 237304 KB Output is correct
19 Correct 129 ms 237304 KB Output is correct
20 Correct 143 ms 237560 KB Output is correct
21 Correct 128 ms 237304 KB Output is correct
22 Correct 123 ms 237304 KB Output is correct
23 Correct 126 ms 237432 KB Output is correct
24 Correct 132 ms 237560 KB Output is correct
25 Correct 127 ms 237432 KB Output is correct
26 Correct 128 ms 237432 KB Output is correct
27 Correct 127 ms 237432 KB Output is correct
28 Correct 126 ms 237432 KB Output is correct
29 Correct 131 ms 237432 KB Output is correct
30 Correct 131 ms 237436 KB Output is correct
31 Correct 124 ms 237432 KB Output is correct
32 Correct 134 ms 237560 KB Output is correct
33 Correct 124 ms 237436 KB Output is correct
34 Correct 125 ms 237548 KB Output is correct
35 Correct 139 ms 237816 KB Output is correct
36 Correct 128 ms 237484 KB Output is correct
37 Correct 135 ms 237816 KB Output is correct
38 Correct 134 ms 237944 KB Output is correct
39 Correct 138 ms 237944 KB Output is correct
40 Correct 137 ms 237944 KB Output is correct
41 Correct 139 ms 237944 KB Output is correct
42 Correct 128 ms 237816 KB Output is correct
43 Correct 129 ms 237816 KB Output is correct
44 Correct 147 ms 237856 KB Output is correct
45 Correct 137 ms 237816 KB Output is correct
46 Correct 134 ms 237816 KB Output is correct
47 Correct 159 ms 238584 KB Output is correct
48 Correct 135 ms 237944 KB Output is correct
49 Correct 135 ms 237944 KB Output is correct
50 Correct 129 ms 237816 KB Output is correct
51 Correct 161 ms 239472 KB Output is correct
52 Correct 166 ms 238964 KB Output is correct
53 Correct 143 ms 238964 KB Output is correct
54 Correct 128 ms 237788 KB Output is correct
55 Correct 128 ms 237688 KB Output is correct
56 Execution timed out 1110 ms 238968 KB Time limit exceeded
57 Halted 0 ms 0 KB -