oj.uz

Submission #814578

# Submission time Handle Problem Language Result Execution time Memory
814578 2023-08-08T08:25:03 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
85 / 100
 5370 ms 18164 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
using pii=array<int,2>;
using tii=array<int,3>;
const ll inf=1e18;
const int N=2e5+5;
int n,m;
ll k,in[N],w[N],ans;
vector<pii> v[N];
tii a[N];
struct ST{
	ll T[2*N],D[2*N];
	void init(int nd,int l,int r){
		if(l==r){
			T[nd]=w[l];
			D[nd]=0;
			return;
		}
		int m=(l+r)>>1,ln=nd+1,rn=nd+2*(m-l+1);
		init(ln,l,m); init(rn,m+1,r);
		T[nd]=min(T[ln],T[rn]); 
		D[nd]=0;
	}
	void upd(int nd,int l,int r,int s,int e,ll v){
		if(r<s||e<l) return;
		if(s<=l&&r<=e){
			T[nd]+=v;
			D[nd]+=v;
			return;
		}
		int m=(l+r)>>1,ln=nd+1,rn=nd+2*(m-l+1);
		upd(ln,l,m,s,e,v); upd(rn,m+1,r,s,e,v);
		T[nd]=min(T[ln],T[rn])+D[nd];
	}
	int qry(int nd,int l,int r,int s,int e){
		if(r<s||e<l) return 1e9;
		if(s<=l&&r<=e) return T[nd];
		int m=(l+r)>>1,ln=nd+1,rn=nd+2*(m-l+1);
		return min(qry(ln,l,m,s,e),qry(rn,m+1,r,s,e))+D[nd];
	}
}T;
ll Do(ll s){
	if(s==n+k) return 1e18;
	ll ret=s;
	for(int i=1;i<=n;i++){
		w[i]=(s-k+in[i])/2;
	}
	T.init(1,1,n);
	for(int r=1;r<n;r++){
		for(auto [l,d]: v[r]){
			ll val=T.qry(1,1,n,l,r);
			if(val==0) break;
			val=min(val,(ll)d);
			T.upd(1,1,n,l,r,-val);
			ret-=val;
		}
	}
	return ret;
}
int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	cin>>n>>m;
	for(int i=1;i<=m;i++){
		cin>>a[i][0]>>a[i][1]>>a[i][2];
		if(a[i][0]>a[i][1]) swap(a[i][0],a[i][1]);
		in[a[i][0]]+=a[i][2];
		in[a[i][1]]-=a[i][2];
		v[a[i][1]-1].push_back({a[i][0],a[i][2]});
		k+=a[i][2];
	}
	for(int i=1;i<=n;i++) in[i]+=in[i-1];
	for(int i=1;i<=n;i++) sort(v[i].begin(),v[i].end(),greater<>());
	ans=k;
	ll L=k,R=2*k-1;
	while(L<=R){
		ll M=(L+R)>>1;
		ll v1=Do(M),v2=Do(M+1);
		if(v1<=v2){
			ans=min(ans,v1);
			R=M-1;
		} else{
			ans=min(ans,v2);
			L=M+1;
		}
	}
	cout<<ans;
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 5036 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4964 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 5036 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4964 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5288 KB Output is correct
29 Correct 16 ms 5280 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 16 ms 5204 KB Output is correct
34 Correct 15 ms 5204 KB Output is correct
35 Correct 17 ms 5288 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 16 ms 5324 KB Output is correct
39 Correct 19 ms 5204 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 5036 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4964 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5288 KB Output is correct
29 Correct 16 ms 5280 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 16 ms 5204 KB Output is correct
34 Correct 15 ms 5204 KB Output is correct
35 Correct 17 ms 5288 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 16 ms 5324 KB Output is correct
39 Correct 19 ms 5204 KB Output is correct
40 Correct 1318 ms 17864 KB Output is correct
41 Correct 1295 ms 17724 KB Output is correct
42 Correct 1377 ms 17936 KB Output is correct
43 Correct 1308 ms 17672 KB Output is correct
44 Correct 1350 ms 17560 KB Output is correct
45 Correct 1403 ms 17724 KB Output is correct
46 Correct 1301 ms 17544 KB Output is correct
47 Correct 1229 ms 17344 KB Output is correct
48 Correct 1709 ms 17652 KB Output is correct
49 Correct 1134 ms 12948 KB Output is correct
50 Correct 1354 ms 13848 KB Output is correct
51 Correct 1264 ms 13396 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 5036 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5000 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4964 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5288 KB Output is correct
29 Correct 16 ms 5280 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 16 ms 5204 KB Output is correct
34 Correct 15 ms 5204 KB Output is correct
35 Correct 17 ms 5288 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 16 ms 5324 KB Output is correct
39 Correct 19 ms 5204 KB Output is correct
40 Correct 1318 ms 17864 KB Output is correct
41 Correct 1295 ms 17724 KB Output is correct
42 Correct 1377 ms 17936 KB Output is correct
43 Correct 1308 ms 17672 KB Output is correct
44 Correct 1350 ms 17560 KB Output is correct
45 Correct 1403 ms 17724 KB Output is correct
46 Correct 1301 ms 17544 KB Output is correct
47 Correct 1229 ms 17344 KB Output is correct
48 Correct 1709 ms 17652 KB Output is correct
49 Correct 1134 ms 12948 KB Output is correct
50 Correct 1354 ms 13848 KB Output is correct
51 Correct 1264 ms 13396 KB Output is correct
52 Incorrect 5370 ms 18164 KB Output isn't correct
53 Halted 0 ms 0 KB -