oj.uz

Submission #814681

# Submission time Handle Problem Language Result Execution time Memory
814681 2023-08-08T08:58:17 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
85 / 100
 5416 ms 17944 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];
	}
	ll 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==2*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 3 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 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 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 3 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 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 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 4 ms 4948 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5020 KB Output is correct
20 Correct 4 ms 5156 KB Output is correct
21 Correct 4 ms 5072 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 5076 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 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 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 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 4 ms 4948 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5020 KB Output is correct
20 Correct 4 ms 5156 KB Output is correct
21 Correct 4 ms 5072 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 5076 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 17 ms 5288 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5284 KB Output is correct
32 Correct 15 ms 5280 KB Output is correct
33 Correct 16 ms 5292 KB Output is correct
34 Correct 15 ms 5276 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5292 KB Output is correct
38 Correct 17 ms 5328 KB Output is correct
39 Correct 23 ms 5312 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 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 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 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 4 ms 4948 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5020 KB Output is correct
20 Correct 4 ms 5156 KB Output is correct
21 Correct 4 ms 5072 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 5076 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 17 ms 5288 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5284 KB Output is correct
32 Correct 15 ms 5280 KB Output is correct
33 Correct 16 ms 5292 KB Output is correct
34 Correct 15 ms 5276 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5292 KB Output is correct
38 Correct 17 ms 5328 KB Output is correct
39 Correct 23 ms 5312 KB Output is correct
40 Correct 1423 ms 17868 KB Output is correct
41 Correct 1244 ms 17724 KB Output is correct
42 Correct 1319 ms 17944 KB Output is correct
43 Correct 1243 ms 17680 KB Output is correct
44 Correct 1161 ms 17484 KB Output is correct
45 Correct 1220 ms 17720 KB Output is correct
46 Correct 1135 ms 17540 KB Output is correct
47 Correct 1209 ms 17344 KB Output is correct
48 Correct 1367 ms 17652 KB Output is correct
49 Correct 1146 ms 12948 KB Output is correct
50 Correct 1372 ms 13856 KB Output is correct
51 Correct 1167 ms 13132 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 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 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 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 4 ms 4948 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 5020 KB Output is correct
20 Correct 4 ms 5156 KB Output is correct
21 Correct 4 ms 5072 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 5076 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 17 ms 5288 KB Output is correct
30 Correct 18 ms 5288 KB Output is correct
31 Correct 16 ms 5284 KB Output is correct
32 Correct 15 ms 5280 KB Output is correct
33 Correct 16 ms 5292 KB Output is correct
34 Correct 15 ms 5276 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 17 ms 5292 KB Output is correct
38 Correct 17 ms 5328 KB Output is correct
39 Correct 23 ms 5312 KB Output is correct
40 Correct 1423 ms 17868 KB Output is correct
41 Correct 1244 ms 17724 KB Output is correct
42 Correct 1319 ms 17944 KB Output is correct
43 Correct 1243 ms 17680 KB Output is correct
44 Correct 1161 ms 17484 KB Output is correct
45 Correct 1220 ms 17720 KB Output is correct
46 Correct 1135 ms 17540 KB Output is correct
47 Correct 1209 ms 17344 KB Output is correct
48 Correct 1367 ms 17652 KB Output is correct
49 Correct 1146 ms 12948 KB Output is correct
50 Correct 1372 ms 13856 KB Output is correct
51 Correct 1167 ms 13132 KB Output is correct
52 Incorrect 5416 ms 17652 KB Output isn't correct
53 Halted 0 ms 0 KB -