#include "railroad.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e9+7)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int MAXN = 4e5+5;
vector<int>par(MAXN),szz(MAXN,1);
int find(int x){
if(x == par[x])return x;
return par[x] = find(par[x]);
}
bool unite(int a,int b){
a = find(a);
b = find(b);
if(a == b)return 0;
if(szz[a] > szz[b])swap(a,b);
szz[b]+=szz[a];
par[a] = b;
return 1;
}
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
s.pb(1e9);
t.pb(0);
int n = (int) s.size();
/*
if(n<=0){
VII dp(17,vector<ll>(1<<17,INF));
for(int i=0;i<n;i++)dp[i][(1<<i)] = max(0,1-s[i]);
for(int mask=0;mask<(1<<n);mask++){
for(int i=0;i<n;i++){
if(!((1<<i)&mask))continue;
for(int j=0;j<n;j++){
if(i == j || !((1<<j)&mask))continue;
dp[i][mask] = min(dp[i][mask],dp[j][mask-(1<<i)] + max(0,t[j]-s[i]));
}
}
}
ll ans = INF;
for(int i=0;i<n;i++)ans = min(ans,dp[i][(1<<n)-1]);
return ans;
}*/
vector<int>c;
for(int i=0;i<n;i++){
c.pb(s[i]);
c.pb(t[i]);
}
sort(all(c));
c.resize(unique(all(c))-c.begin());
vector<ll>v(sz(c));
ll ans = 0;
for(int i=0;i<2*n;i++)par[i] = i;
for(int i=0;i<n;i++){
s[i] = lb(all(c),s[i])-c.begin();
t[i] = lb(all(c),t[i])-c.begin();
v[s[i]]++;
v[t[i]]--;
unite(s[i],t[i]);
}
vector<pii>edge;
for(int i=1;i<sz(v);i++)v[i]+=v[i-1];
for(int i=0;i<sz(v);i++){
if(v[i]>0){
if(i+1<sz(v)){
ans+=v[i]*(c[i+1]-c[i]);
}
}
if(i+1<sz(v)){
if(v[i])unite(i,i+1);
else edge.pb({c[i+1]-c[i],i});
}
}
sort(all(edge));
for(pii x:edge){
if(unite(x.se,x.se+1))ans+=x.fi;
}
return ans;
}
/*
int main()
{
int n;
cin>>n;
vector<int>s(n),t(n);
for(int i=0;i<n;i++)cin>>s[i]>>t[i];
cout<<plan_roller_coaster(s,t);
}*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
3436 KB |
n = 2 |
2 |
Correct |
3 ms |
3436 KB |
n = 2 |
3 |
Correct |
3 ms |
3436 KB |
n = 2 |
4 |
Correct |
3 ms |
3436 KB |
n = 2 |
5 |
Correct |
5 ms |
3436 KB |
n = 2 |
6 |
Correct |
3 ms |
3436 KB |
n = 2 |
7 |
Correct |
3 ms |
3436 KB |
n = 3 |
8 |
Correct |
3 ms |
3436 KB |
n = 3 |
9 |
Correct |
3 ms |
3584 KB |
n = 3 |
10 |
Correct |
4 ms |
3436 KB |
n = 8 |
11 |
Correct |
3 ms |
3436 KB |
n = 8 |
12 |
Correct |
3 ms |
3436 KB |
n = 8 |
13 |
Correct |
3 ms |
3436 KB |
n = 8 |
14 |
Correct |
3 ms |
3436 KB |
n = 8 |
15 |
Correct |
3 ms |
3436 KB |
n = 8 |
16 |
Correct |
3 ms |
3436 KB |
n = 8 |
17 |
Correct |
3 ms |
3436 KB |
n = 8 |
18 |
Correct |
3 ms |
3436 KB |
n = 8 |
19 |
Correct |
3 ms |
3436 KB |
n = 3 |
20 |
Correct |
3 ms |
3436 KB |
n = 7 |
21 |
Correct |
3 ms |
3436 KB |
n = 8 |
22 |
Correct |
3 ms |
3436 KB |
n = 8 |
23 |
Correct |
3 ms |
3440 KB |
n = 8 |
24 |
Correct |
3 ms |
3436 KB |
n = 8 |
25 |
Correct |
4 ms |
3436 KB |
n = 8 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
3436 KB |
n = 2 |
2 |
Correct |
3 ms |
3436 KB |
n = 2 |
3 |
Correct |
3 ms |
3436 KB |
n = 2 |
4 |
Correct |
3 ms |
3436 KB |
n = 2 |
5 |
Correct |
5 ms |
3436 KB |
n = 2 |
6 |
Correct |
3 ms |
3436 KB |
n = 2 |
7 |
Correct |
3 ms |
3436 KB |
n = 3 |
8 |
Correct |
3 ms |
3436 KB |
n = 3 |
9 |
Correct |
3 ms |
3584 KB |
n = 3 |
10 |
Correct |
4 ms |
3436 KB |
n = 8 |
11 |
Correct |
3 ms |
3436 KB |
n = 8 |
12 |
Correct |
3 ms |
3436 KB |
n = 8 |
13 |
Correct |
3 ms |
3436 KB |
n = 8 |
14 |
Correct |
3 ms |
3436 KB |
n = 8 |
15 |
Correct |
3 ms |
3436 KB |
n = 8 |
16 |
Correct |
3 ms |
3436 KB |
n = 8 |
17 |
Correct |
3 ms |
3436 KB |
n = 8 |
18 |
Correct |
3 ms |
3436 KB |
n = 8 |
19 |
Correct |
3 ms |
3436 KB |
n = 3 |
20 |
Correct |
3 ms |
3436 KB |
n = 7 |
21 |
Correct |
3 ms |
3436 KB |
n = 8 |
22 |
Correct |
3 ms |
3436 KB |
n = 8 |
23 |
Correct |
3 ms |
3440 KB |
n = 8 |
24 |
Correct |
3 ms |
3436 KB |
n = 8 |
25 |
Correct |
4 ms |
3436 KB |
n = 8 |
26 |
Correct |
3 ms |
3436 KB |
n = 8 |
27 |
Correct |
3 ms |
3436 KB |
n = 8 |
28 |
Correct |
3 ms |
3436 KB |
n = 8 |
29 |
Correct |
3 ms |
3504 KB |
n = 16 |
30 |
Correct |
3 ms |
3436 KB |
n = 16 |
31 |
Correct |
3 ms |
3436 KB |
n = 16 |
32 |
Correct |
3 ms |
3436 KB |
n = 16 |
33 |
Correct |
3 ms |
3436 KB |
n = 16 |
34 |
Correct |
3 ms |
3436 KB |
n = 16 |
35 |
Correct |
3 ms |
3436 KB |
n = 16 |
36 |
Correct |
3 ms |
3436 KB |
n = 15 |
37 |
Correct |
3 ms |
3436 KB |
n = 8 |
38 |
Correct |
3 ms |
3564 KB |
n = 16 |
39 |
Correct |
4 ms |
3436 KB |
n = 16 |
40 |
Correct |
4 ms |
3436 KB |
n = 9 |
41 |
Correct |
3 ms |
3436 KB |
n = 16 |
42 |
Correct |
3 ms |
3456 KB |
n = 16 |
43 |
Correct |
3 ms |
3436 KB |
n = 16 |
44 |
Correct |
3 ms |
3436 KB |
n = 9 |
45 |
Correct |
3 ms |
3436 KB |
n = 15 |
46 |
Correct |
3 ms |
3436 KB |
n = 16 |
47 |
Correct |
3 ms |
3436 KB |
n = 16 |
48 |
Correct |
3 ms |
3436 KB |
n = 16 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
208 ms |
16156 KB |
n = 199999 |
2 |
Correct |
222 ms |
16200 KB |
n = 199991 |
3 |
Correct |
217 ms |
16260 KB |
n = 199993 |
4 |
Correct |
171 ms |
13188 KB |
n = 152076 |
5 |
Correct |
85 ms |
9608 KB |
n = 93249 |
6 |
Correct |
183 ms |
14536 KB |
n = 199910 |
7 |
Correct |
198 ms |
15404 KB |
n = 199999 |
8 |
Correct |
174 ms |
14664 KB |
n = 199997 |
9 |
Correct |
174 ms |
14380 KB |
n = 171294 |
10 |
Correct |
154 ms |
11824 KB |
n = 140872 |
11 |
Correct |
189 ms |
14536 KB |
n = 199886 |
12 |
Correct |
187 ms |
15432 KB |
n = 199996 |
13 |
Correct |
183 ms |
14920 KB |
n = 200000 |
14 |
Correct |
201 ms |
17352 KB |
n = 199998 |
15 |
Correct |
201 ms |
17352 KB |
n = 200000 |
16 |
Correct |
207 ms |
17864 KB |
n = 199998 |
17 |
Correct |
196 ms |
16200 KB |
n = 200000 |
18 |
Correct |
194 ms |
15640 KB |
n = 190000 |
19 |
Correct |
168 ms |
14968 KB |
n = 177777 |
20 |
Correct |
87 ms |
9816 KB |
n = 100000 |
21 |
Correct |
200 ms |
16200 KB |
n = 200000 |
22 |
Correct |
234 ms |
18248 KB |
n = 200000 |
23 |
Correct |
236 ms |
18248 KB |
n = 200000 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
3436 KB |
n = 2 |
2 |
Correct |
3 ms |
3436 KB |
n = 2 |
3 |
Correct |
3 ms |
3436 KB |
n = 2 |
4 |
Correct |
3 ms |
3436 KB |
n = 2 |
5 |
Correct |
5 ms |
3436 KB |
n = 2 |
6 |
Correct |
3 ms |
3436 KB |
n = 2 |
7 |
Correct |
3 ms |
3436 KB |
n = 3 |
8 |
Correct |
3 ms |
3436 KB |
n = 3 |
9 |
Correct |
3 ms |
3584 KB |
n = 3 |
10 |
Correct |
4 ms |
3436 KB |
n = 8 |
11 |
Correct |
3 ms |
3436 KB |
n = 8 |
12 |
Correct |
3 ms |
3436 KB |
n = 8 |
13 |
Correct |
3 ms |
3436 KB |
n = 8 |
14 |
Correct |
3 ms |
3436 KB |
n = 8 |
15 |
Correct |
3 ms |
3436 KB |
n = 8 |
16 |
Correct |
3 ms |
3436 KB |
n = 8 |
17 |
Correct |
3 ms |
3436 KB |
n = 8 |
18 |
Correct |
3 ms |
3436 KB |
n = 8 |
19 |
Correct |
3 ms |
3436 KB |
n = 3 |
20 |
Correct |
3 ms |
3436 KB |
n = 7 |
21 |
Correct |
3 ms |
3436 KB |
n = 8 |
22 |
Correct |
3 ms |
3436 KB |
n = 8 |
23 |
Correct |
3 ms |
3440 KB |
n = 8 |
24 |
Correct |
3 ms |
3436 KB |
n = 8 |
25 |
Correct |
4 ms |
3436 KB |
n = 8 |
26 |
Correct |
3 ms |
3436 KB |
n = 8 |
27 |
Correct |
3 ms |
3436 KB |
n = 8 |
28 |
Correct |
3 ms |
3436 KB |
n = 8 |
29 |
Correct |
3 ms |
3504 KB |
n = 16 |
30 |
Correct |
3 ms |
3436 KB |
n = 16 |
31 |
Correct |
3 ms |
3436 KB |
n = 16 |
32 |
Correct |
3 ms |
3436 KB |
n = 16 |
33 |
Correct |
3 ms |
3436 KB |
n = 16 |
34 |
Correct |
3 ms |
3436 KB |
n = 16 |
35 |
Correct |
3 ms |
3436 KB |
n = 16 |
36 |
Correct |
3 ms |
3436 KB |
n = 15 |
37 |
Correct |
3 ms |
3436 KB |
n = 8 |
38 |
Correct |
3 ms |
3564 KB |
n = 16 |
39 |
Correct |
4 ms |
3436 KB |
n = 16 |
40 |
Correct |
4 ms |
3436 KB |
n = 9 |
41 |
Correct |
3 ms |
3436 KB |
n = 16 |
42 |
Correct |
3 ms |
3456 KB |
n = 16 |
43 |
Correct |
3 ms |
3436 KB |
n = 16 |
44 |
Correct |
3 ms |
3436 KB |
n = 9 |
45 |
Correct |
3 ms |
3436 KB |
n = 15 |
46 |
Correct |
3 ms |
3436 KB |
n = 16 |
47 |
Correct |
3 ms |
3436 KB |
n = 16 |
48 |
Correct |
3 ms |
3436 KB |
n = 16 |
49 |
Correct |
208 ms |
16156 KB |
n = 199999 |
50 |
Correct |
222 ms |
16200 KB |
n = 199991 |
51 |
Correct |
217 ms |
16260 KB |
n = 199993 |
52 |
Correct |
171 ms |
13188 KB |
n = 152076 |
53 |
Correct |
85 ms |
9608 KB |
n = 93249 |
54 |
Correct |
183 ms |
14536 KB |
n = 199910 |
55 |
Correct |
198 ms |
15404 KB |
n = 199999 |
56 |
Correct |
174 ms |
14664 KB |
n = 199997 |
57 |
Correct |
174 ms |
14380 KB |
n = 171294 |
58 |
Correct |
154 ms |
11824 KB |
n = 140872 |
59 |
Correct |
189 ms |
14536 KB |
n = 199886 |
60 |
Correct |
187 ms |
15432 KB |
n = 199996 |
61 |
Correct |
183 ms |
14920 KB |
n = 200000 |
62 |
Correct |
201 ms |
17352 KB |
n = 199998 |
63 |
Correct |
201 ms |
17352 KB |
n = 200000 |
64 |
Correct |
207 ms |
17864 KB |
n = 199998 |
65 |
Correct |
196 ms |
16200 KB |
n = 200000 |
66 |
Correct |
194 ms |
15640 KB |
n = 190000 |
67 |
Correct |
168 ms |
14968 KB |
n = 177777 |
68 |
Correct |
87 ms |
9816 KB |
n = 100000 |
69 |
Correct |
200 ms |
16200 KB |
n = 200000 |
70 |
Correct |
234 ms |
18248 KB |
n = 200000 |
71 |
Correct |
236 ms |
18248 KB |
n = 200000 |
72 |
Correct |
219 ms |
16200 KB |
n = 200000 |
73 |
Correct |
204 ms |
16200 KB |
n = 200000 |
74 |
Correct |
203 ms |
16200 KB |
n = 200000 |
75 |
Correct |
197 ms |
16328 KB |
n = 200000 |
76 |
Correct |
196 ms |
16216 KB |
n = 200000 |
77 |
Correct |
159 ms |
14664 KB |
n = 200000 |
78 |
Correct |
190 ms |
16712 KB |
n = 200000 |
79 |
Correct |
183 ms |
15048 KB |
n = 184307 |
80 |
Correct |
67 ms |
8084 KB |
n = 76040 |
81 |
Correct |
194 ms |
14536 KB |
n = 199981 |
82 |
Correct |
190 ms |
15856 KB |
n = 199994 |
83 |
Correct |
181 ms |
14764 KB |
n = 199996 |
84 |
Correct |
197 ms |
17352 KB |
n = 199998 |
85 |
Correct |
218 ms |
17352 KB |
n = 200000 |
86 |
Correct |
206 ms |
17736 KB |
n = 199998 |
87 |
Correct |
192 ms |
16200 KB |
n = 200000 |
88 |
Correct |
216 ms |
16328 KB |
n = 200000 |
89 |
Correct |
190 ms |
16196 KB |
n = 200000 |
90 |
Correct |
190 ms |
16196 KB |
n = 200000 |
91 |
Correct |
226 ms |
18264 KB |
n = 200000 |
92 |
Correct |
246 ms |
18248 KB |
n = 200000 |