oj.uz

Submission #814583

# Submission time Handle Problem Language Result Execution time Memory
814583 2023-08-08T08:26:41 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
85 / 100
 5259 ms 18196 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==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 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 5036 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5052 KB Output is correct
9 Correct 4 ms 5032 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 4 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 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 5036 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5052 KB Output is correct
9 Correct 4 ms 5032 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5032 KB Output is correct
22 Correct 3 ms 5032 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5032 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 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 5036 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5052 KB Output is correct
9 Correct 4 ms 5032 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5032 KB Output is correct
22 Correct 3 ms 5032 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5032 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5300 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 18 ms 5204 KB Output is correct
33 Correct 17 ms 5300 KB Output is correct
34 Correct 17 ms 5332 KB Output is correct
35 Correct 18 ms 5204 KB Output is correct
36 Correct 18 ms 5324 KB Output is correct
37 Correct 17 ms 5204 KB Output is correct
38 Correct 16 ms 5300 KB Output is correct
39 Correct 18 ms 5332 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 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 5036 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5052 KB Output is correct
9 Correct 4 ms 5032 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5032 KB Output is correct
22 Correct 3 ms 5032 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5032 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5300 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 18 ms 5204 KB Output is correct
33 Correct 17 ms 5300 KB Output is correct
34 Correct 17 ms 5332 KB Output is correct
35 Correct 18 ms 5204 KB Output is correct
36 Correct 18 ms 5324 KB Output is correct
37 Correct 17 ms 5204 KB Output is correct
38 Correct 16 ms 5300 KB Output is correct
39 Correct 18 ms 5332 KB Output is correct
40 Correct 1355 ms 18128 KB Output is correct
41 Correct 1249 ms 17980 KB Output is correct
42 Correct 1436 ms 18196 KB Output is correct
43 Correct 1255 ms 17932 KB Output is correct
44 Correct 1230 ms 17816 KB Output is correct
45 Correct 1242 ms 17980 KB Output is correct
46 Correct 1131 ms 17804 KB Output is correct
47 Correct 1143 ms 17600 KB Output is correct
48 Correct 1128 ms 17904 KB Output is correct
49 Correct 953 ms 13204 KB Output is correct
50 Correct 1104 ms 14108 KB Output is correct
51 Correct 1085 ms 13140 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 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 5036 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5052 KB Output is correct
9 Correct 4 ms 5032 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 4 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 5076 KB Output is correct
17 Correct 3 ms 5076 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 3 ms 5032 KB Output is correct
22 Correct 3 ms 5032 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5032 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 17 ms 5204 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5300 KB Output is correct
31 Correct 16 ms 5204 KB Output is correct
32 Correct 18 ms 5204 KB Output is correct
33 Correct 17 ms 5300 KB Output is correct
34 Correct 17 ms 5332 KB Output is correct
35 Correct 18 ms 5204 KB Output is correct
36 Correct 18 ms 5324 KB Output is correct
37 Correct 17 ms 5204 KB Output is correct
38 Correct 16 ms 5300 KB Output is correct
39 Correct 18 ms 5332 KB Output is correct
40 Correct 1355 ms 18128 KB Output is correct
41 Correct 1249 ms 17980 KB Output is correct
42 Correct 1436 ms 18196 KB Output is correct
43 Correct 1255 ms 17932 KB Output is correct
44 Correct 1230 ms 17816 KB Output is correct
45 Correct 1242 ms 17980 KB Output is correct
46 Correct 1131 ms 17804 KB Output is correct
47 Correct 1143 ms 17600 KB Output is correct
48 Correct 1128 ms 17904 KB Output is correct
49 Correct 953 ms 13204 KB Output is correct
50 Correct 1104 ms 14108 KB Output is correct
51 Correct 1085 ms 13140 KB Output is correct
52 Incorrect 5259 ms 17652 KB Output isn't correct
53 Halted 0 ms 0 KB -