oj.uz

Submission #606560

# Submission time Handle Problem Language Result Execution time Memory
606560 2022-07-26T07:10:48 Z rrrr10000 Sky Walking (IOI19_walk) C++14
100 / 100
 1515 ms 264060 KB 
#include "walk.h"

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef vector<P> vp;
typedef vector<vp> vvp;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define pb emplace_back
#define all(a) a.begin(),a.end()
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
#define SPQ(a) priority_queue<a,vector<a>,greater<a>>
#define fi first
#define se second
#define rsort(a) {sort(all(a));reverse(all(a));}
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> void outvp(T v){rep(i,v.size()){cout<<'('<<v[i].fi<<','<<v[i].se<<')';}cout<<endl;}
const ll inf=1001001001001001001;
ll dijkstra(ll n,vector<PP> edge,ll from,ll to){
	vvp g(n);
	for(auto x:edge){
		ll a,b,c;tie(a,b,c)=x;
		g[a].pb(b,c);g[b].pb(a,c);
	}
	SPQ(P) pq;pq.emplace(0,from);
	vi dis(n,inf);dis[from]=0;
	while(!pq.empty()){
		auto t=pq.top();pq.pop();
		if(dis[t.se]!=t.fi)continue;
		for(auto x:g[t.se])if(chmin(dis[x.fi],t.fi+x.se))pq.emplace(dis[x.fi],x.fi);
	}
	if(dis[to]==inf)return -1;
	return dis[to];
}
long long min_distance(std::vector<int> X, std::vector<int> h, std::vector<int> l, std::vector<int> r, std::vector<int> y, int from, int to) {
	ll n=X.size(),m=l.size();
	set<P> S;
	vvi L(n),R(n);
	rep(i,m)L[l[i]].pb(i);
	rep(i,m)R[r[i]].pb(i);
	ll cnt=0,F,T;
	vvp yoko(m);
	vector<PP> edge;
	vvp sp2(n);
	vp srt(m);
	rep(i,m)srt[i]=P(y[i],i);
	rsort(srt);
	set<ll> S2;
	priority_queue<P> pq;
	rep(i,n)pq.emplace(h[i],i);
	for(auto x:srt){
		while(pq.size()&&pq.top().fi>=x.fi){
			S2.insert(pq.top().se);pq.pop();
		}
		auto itr=S2.lower_bound(from);
		if(itr!=S2.begin())itr--;
		rep(t,3){
			if(itr==S2.end())break;
			if(l[x.se]<=*itr&&*itr<=r[x.se])sp2[*itr].pb(x);
			itr++;
		}
		itr=S2.lower_bound(to);
		if(itr!=S2.begin())itr--;
		rep(t,3){
			if(itr==S2.end())break;
			if(l[x.se]<=*itr&&*itr<=r[x.se])sp2[*itr].pb(x);
			itr++;
		}
	}
	rep(i,n){
		vp sp;
		for(ll t:L[i])S.insert(P(y[t],t));
		for(ll t:L[i]){
			sp.pb(y[t],t);
			auto itr=S.lower_bound(P(y[t],t));
			if(itr!=S.begin()){
				itr--;sp.pb(*itr);
			}
		}
		for(ll t:R[i]){
			sp.pb(y[t],t);
			auto itr=S.lower_bound(P(y[t],t));
			if(itr!=S.begin()){
				itr--;sp.pb(*itr);
			}
		}
		if(S.size())sp.pb(*S.begin());
		sp.pb(0,-1);
		for(auto x:sp2[i])sp.pb(x);
		for(ll t:R[i])S.erase(P(y[t],t));
		dupli(sp);
		while(sp.size()&&sp.back().fi>h[i])sp.pop_back();
		rep(j,sp.size()-1){
			edge.pb(cnt+j,cnt+j+1,sp[j+1].fi-sp[j].fi);
		}
		REP(j,1,sp.size())yoko[sp[j].se].pb(i,cnt+j);
		if(from==i)F=cnt;
		if(to==i)T=cnt;
		cnt+=sp.size();
	}
	rep(i,m)rep(j,yoko[i].size()-1)edge.pb(yoko[i][j].se,yoko[i][j+1].se,X[yoko[i][j+1].fi]-X[yoko[i][j].fi]);
	return dijkstra(cnt,edge,F,T);
}

Compilation message

walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:107:17: warning: 'T' may be used uninitialized in this function [-Wmaybe-uninitialized]
  107 |  return dijkstra(cnt,edge,F,T);
      |         ~~~~~~~~^~~~~~~~~~~~~~
walk.cpp:107:17: warning: 'F' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 296 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 212 KB Output is correct
15 Correct 0 ms 296 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 296 KB Output is correct
3 Correct 497 ms 89020 KB Output is correct
4 Correct 528 ms 122640 KB Output is correct
5 Correct 344 ms 99856 KB Output is correct
6 Correct 347 ms 95116 KB Output is correct
7 Correct 376 ms 99968 KB Output is correct
8 Correct 496 ms 93264 KB Output is correct
9 Correct 447 ms 108064 KB Output is correct
10 Correct 567 ms 125604 KB Output is correct
11 Correct 401 ms 82732 KB Output is correct
12 Correct 315 ms 78656 KB Output is correct
13 Correct 583 ms 129888 KB Output is correct
14 Correct 346 ms 77168 KB Output is correct
15 Correct 357 ms 79516 KB Output is correct
16 Correct 344 ms 77496 KB Output is correct
17 Correct 296 ms 74744 KB Output is correct
18 Correct 408 ms 82292 KB Output is correct
19 Correct 10 ms 4112 KB Output is correct
20 Correct 116 ms 38656 KB Output is correct
21 Correct 300 ms 71024 KB Output is correct
22 Correct 311 ms 77784 KB Output is correct
23 Correct 498 ms 92692 KB Output is correct
24 Correct 320 ms 76456 KB Output is correct
25 Correct 310 ms 74636 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 29504 KB Output is correct
2 Correct 574 ms 98112 KB Output is correct
3 Correct 537 ms 104112 KB Output is correct
4 Correct 754 ms 144972 KB Output is correct
5 Correct 996 ms 147928 KB Output is correct
6 Correct 865 ms 147608 KB Output is correct
7 Correct 396 ms 95736 KB Output is correct
8 Correct 317 ms 74524 KB Output is correct
9 Correct 921 ms 147692 KB Output is correct
10 Correct 471 ms 100120 KB Output is correct
11 Correct 37 ms 10596 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 29504 KB Output is correct
2 Correct 574 ms 98112 KB Output is correct
3 Correct 537 ms 104112 KB Output is correct
4 Correct 754 ms 144972 KB Output is correct
5 Correct 996 ms 147928 KB Output is correct
6 Correct 865 ms 147608 KB Output is correct
7 Correct 396 ms 95736 KB Output is correct
8 Correct 317 ms 74524 KB Output is correct
9 Correct 921 ms 147692 KB Output is correct
10 Correct 471 ms 100120 KB Output is correct
11 Correct 37 ms 10596 KB Output is correct
12 Correct 554 ms 104008 KB Output is correct
13 Correct 617 ms 143408 KB Output is correct
14 Correct 922 ms 147488 KB Output is correct
15 Correct 607 ms 115632 KB Output is correct
16 Correct 635 ms 128384 KB Output is correct
17 Correct 688 ms 144796 KB Output is correct
18 Correct 633 ms 115556 KB Output is correct
19 Correct 634 ms 127920 KB Output is correct
20 Correct 422 ms 94036 KB Output is correct
21 Correct 140 ms 47564 KB Output is correct
22 Correct 450 ms 122852 KB Output is correct
23 Correct 439 ms 116832 KB Output is correct
24 Correct 334 ms 87104 KB Output is correct
25 Correct 396 ms 107100 KB Output is correct
26 Correct 303 ms 69180 KB Output is correct
27 Correct 986 ms 146828 KB Output is correct
28 Correct 564 ms 142560 KB Output is correct
29 Correct 848 ms 146228 KB Output is correct
30 Correct 404 ms 95264 KB Output is correct
31 Correct 864 ms 146052 KB Output is correct
32 Correct 453 ms 83532 KB Output is correct
33 Correct 347 ms 83340 KB Output is correct
34 Correct 451 ms 91132 KB Output is correct
35 Correct 399 ms 90752 KB Output is correct
36 Correct 337 ms 78584 KB Output is correct
37 Correct 283 ms 68312 KB Output is correct
38 Correct 332 ms 74624 KB Output is correct
39 Correct 499 ms 89908 KB Output is correct
40 Correct 320 ms 73556 KB Output is correct
41 Correct 330 ms 71848 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 296 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 212 KB Output is correct
15 Correct 0 ms 296 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 296 KB Output is correct
20 Correct 497 ms 89020 KB Output is correct
21 Correct 528 ms 122640 KB Output is correct
22 Correct 344 ms 99856 KB Output is correct
23 Correct 347 ms 95116 KB Output is correct
24 Correct 376 ms 99968 KB Output is correct
25 Correct 496 ms 93264 KB Output is correct
26 Correct 447 ms 108064 KB Output is correct
27 Correct 567 ms 125604 KB Output is correct
28 Correct 401 ms 82732 KB Output is correct
29 Correct 315 ms 78656 KB Output is correct
30 Correct 583 ms 129888 KB Output is correct
31 Correct 346 ms 77168 KB Output is correct
32 Correct 357 ms 79516 KB Output is correct
33 Correct 344 ms 77496 KB Output is correct
34 Correct 296 ms 74744 KB Output is correct
35 Correct 408 ms 82292 KB Output is correct
36 Correct 10 ms 4112 KB Output is correct
37 Correct 116 ms 38656 KB Output is correct
38 Correct 300 ms 71024 KB Output is correct
39 Correct 311 ms 77784 KB Output is correct
40 Correct 498 ms 92692 KB Output is correct
41 Correct 320 ms 76456 KB Output is correct
42 Correct 310 ms 74636 KB Output is correct
43 Correct 127 ms 29504 KB Output is correct
44 Correct 574 ms 98112 KB Output is correct
45 Correct 537 ms 104112 KB Output is correct
46 Correct 754 ms 144972 KB Output is correct
47 Correct 996 ms 147928 KB Output is correct
48 Correct 865 ms 147608 KB Output is correct
49 Correct 396 ms 95736 KB Output is correct
50 Correct 317 ms 74524 KB Output is correct
51 Correct 921 ms 147692 KB Output is correct
52 Correct 471 ms 100120 KB Output is correct
53 Correct 37 ms 10596 KB Output is correct
54 Correct 554 ms 104008 KB Output is correct
55 Correct 617 ms 143408 KB Output is correct
56 Correct 922 ms 147488 KB Output is correct
57 Correct 607 ms 115632 KB Output is correct
58 Correct 635 ms 128384 KB Output is correct
59 Correct 688 ms 144796 KB Output is correct
60 Correct 633 ms 115556 KB Output is correct
61 Correct 634 ms 127920 KB Output is correct
62 Correct 422 ms 94036 KB Output is correct
63 Correct 140 ms 47564 KB Output is correct
64 Correct 450 ms 122852 KB Output is correct
65 Correct 439 ms 116832 KB Output is correct
66 Correct 334 ms 87104 KB Output is correct
67 Correct 396 ms 107100 KB Output is correct
68 Correct 303 ms 69180 KB Output is correct
69 Correct 986 ms 146828 KB Output is correct
70 Correct 564 ms 142560 KB Output is correct
71 Correct 848 ms 146228 KB Output is correct
72 Correct 404 ms 95264 KB Output is correct
73 Correct 864 ms 146052 KB Output is correct
74 Correct 453 ms 83532 KB Output is correct
75 Correct 347 ms 83340 KB Output is correct
76 Correct 451 ms 91132 KB Output is correct
77 Correct 399 ms 90752 KB Output is correct
78 Correct 337 ms 78584 KB Output is correct
79 Correct 283 ms 68312 KB Output is correct
80 Correct 332 ms 74624 KB Output is correct
81 Correct 499 ms 89908 KB Output is correct
82 Correct 320 ms 73556 KB Output is correct
83 Correct 330 ms 71848 KB Output is correct
84 Correct 103 ms 24316 KB Output is correct
85 Correct 584 ms 114384 KB Output is correct
86 Correct 1144 ms 208968 KB Output is correct
87 Correct 144 ms 55448 KB Output is correct
88 Correct 179 ms 56748 KB Output is correct
89 Correct 176 ms 55488 KB Output is correct
90 Correct 29 ms 10148 KB Output is correct
91 Correct 2 ms 952 KB Output is correct
92 Correct 30 ms 8620 KB Output is correct
93 Correct 356 ms 83480 KB Output is correct
94 Correct 137 ms 50124 KB Output is correct
95 Correct 496 ms 131188 KB Output is correct
96 Correct 432 ms 121544 KB Output is correct
97 Correct 362 ms 93772 KB Output is correct
98 Correct 381 ms 110820 KB Output is correct
99 Correct 1515 ms 264060 KB Output is correct
100 Correct 718 ms 150240 KB Output is correct
101 Correct 1036 ms 190708 KB Output is correct
102 Correct 461 ms 99680 KB Output is correct
103 Correct 338 ms 83560 KB Output is correct
104 Correct 337 ms 83156 KB Output is correct
105 Correct 440 ms 90396 KB Output is correct
106 Correct 363 ms 87376 KB Output is correct
107 Correct 420 ms 85168 KB Output is correct
108 Correct 36 ms 12396 KB Output is correct
109 Correct 676 ms 123392 KB Output is correct
110 Correct 606 ms 147488 KB Output is correct
111 Correct 583 ms 149888 KB Output is correct
112 Correct 405 ms 92448 KB Output is correct
113 Correct 398 ms 87988 KB Output is correct