oj.uz

Submission #814682

# Submission time Handle Problem Language Result Execution time Memory
814682 2023-08-08T08:58:32 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
100 / 100
 3640 ms 17940 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 1e18;
		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 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 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 3 ms 4956 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 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 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 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 3 ms 4956 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 3 ms 5044 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 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 2 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 3 ms 4948 KB Output is correct
6 Correct 3 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 3 ms 4956 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 3 ms 5044 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
28 Correct 20 ms 5204 KB Output is correct
29 Correct 18 ms 5204 KB Output is correct
30 Correct 17 ms 5292 KB Output is correct
31 Correct 24 ms 5264 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 18 ms 5292 KB Output is correct
34 Correct 17 ms 5224 KB Output is correct
35 Correct 26 ms 5272 KB Output is correct
36 Correct 17 ms 5276 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 17 ms 5324 KB Output is correct
39 Correct 25 ms 5288 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 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 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 3 ms 4956 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 3 ms 5044 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
28 Correct 20 ms 5204 KB Output is correct
29 Correct 18 ms 5204 KB Output is correct
30 Correct 17 ms 5292 KB Output is correct
31 Correct 24 ms 5264 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 18 ms 5292 KB Output is correct
34 Correct 17 ms 5224 KB Output is correct
35 Correct 26 ms 5272 KB Output is correct
36 Correct 17 ms 5276 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 17 ms 5324 KB Output is correct
39 Correct 25 ms 5288 KB Output is correct
40 Correct 1671 ms 17868 KB Output is correct
41 Correct 1231 ms 17724 KB Output is correct
42 Correct 1415 ms 17940 KB Output is correct
43 Correct 1254 ms 17676 KB Output is correct
44 Correct 1325 ms 17556 KB Output is correct
45 Correct 1168 ms 17716 KB Output is correct
46 Correct 1128 ms 17480 KB Output is correct
47 Correct 1098 ms 17344 KB Output is correct
48 Correct 1138 ms 17652 KB Output is correct
49 Correct 960 ms 12952 KB Output is correct
50 Correct 1036 ms 13852 KB Output is correct
51 Correct 991 ms 13132 KB Output is correct

Subtask #5
15.0 / 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 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 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 3 ms 4956 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5076 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 3 ms 5044 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 3 ms 5076 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
28 Correct 20 ms 5204 KB Output is correct
29 Correct 18 ms 5204 KB Output is correct
30 Correct 17 ms 5292 KB Output is correct
31 Correct 24 ms 5264 KB Output is correct
32 Correct 16 ms 5284 KB Output is correct
33 Correct 18 ms 5292 KB Output is correct
34 Correct 17 ms 5224 KB Output is correct
35 Correct 26 ms 5272 KB Output is correct
36 Correct 17 ms 5276 KB Output is correct
37 Correct 17 ms 5284 KB Output is correct
38 Correct 17 ms 5324 KB Output is correct
39 Correct 25 ms 5288 KB Output is correct
40 Correct 1671 ms 17868 KB Output is correct
41 Correct 1231 ms 17724 KB Output is correct
42 Correct 1415 ms 17940 KB Output is correct
43 Correct 1254 ms 17676 KB Output is correct
44 Correct 1325 ms 17556 KB Output is correct
45 Correct 1168 ms 17716 KB Output is correct
46 Correct 1128 ms 17480 KB Output is correct
47 Correct 1098 ms 17344 KB Output is correct
48 Correct 1138 ms 17652 KB Output is correct
49 Correct 960 ms 12952 KB Output is correct
50 Correct 1036 ms 13852 KB Output is correct
51 Correct 991 ms 13132 KB Output is correct
52 Correct 3403 ms 17652 KB Output is correct
53 Correct 3319 ms 17896 KB Output is correct
54 Correct 3404 ms 17820 KB Output is correct
55 Correct 3168 ms 17436 KB Output is correct
56 Correct 3640 ms 17740 KB Output is correct
57 Correct 3348 ms 17524 KB Output is correct
58 Correct 2972 ms 17320 KB Output is correct
59 Correct 2331 ms 12600 KB Output is correct