oj.uz

Submission #814554

# Submission time Handle Problem Language Result Execution time Memory
814554 2023-08-08T08:19:42 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
85 / 100
 1878 ms 13172 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;
int in[N],w[N],ans;
vector<int> v[N];
tii a[N];
struct ST{
	int 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,int 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;
int Do(int s){
	if(s==n+m) return 1e9;
	int ret=s;
	for(int i=1;i<=n;i++){
		w[i]=s-m+in[i];
		w[i]/=2;
	}
	T.init(1,1,n);
	for(int r=1;r<n;r++){
		for(int l: v[r]){
			if(T.qry(1,1,n,l,r)==0) break;
			T.upd(1,1,n,l,r,-1);
			ret--;
		}
	}
	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].emplace_back(a[i][0]);
	}
	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=m;
	int L=m,R=n+m-1;
	while(L<=R){
		int M=(L+R)>>1;
		int 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;
		}
	}
	/*for(int i=m;i<=n+m-1;i++){
		int v=Do(i);
		debug(i,v);
		ans=min(ans,v);
	}*/
	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 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 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 5016 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 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 2 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 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 5016 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 4976 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 5 ms 5064 KB Output is correct
24 Correct 4 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 6 ms 4948 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 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 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 5016 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 4976 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 5 ms 5064 KB Output is correct
24 Correct 4 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 6 ms 4948 KB Output is correct
28 Correct 19 ms 5208 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5204 KB Output is correct
31 Correct 16 ms 5076 KB Output is correct
32 Correct 18 ms 5208 KB Output is correct
33 Correct 15 ms 5204 KB Output is correct
34 Correct 23 ms 5196 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 24 ms 5204 KB Output is correct
38 Correct 23 ms 5148 KB Output is correct
39 Correct 19 ms 5236 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 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 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 5016 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 4976 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 5 ms 5064 KB Output is correct
24 Correct 4 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 6 ms 4948 KB Output is correct
28 Correct 19 ms 5208 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5204 KB Output is correct
31 Correct 16 ms 5076 KB Output is correct
32 Correct 18 ms 5208 KB Output is correct
33 Correct 15 ms 5204 KB Output is correct
34 Correct 23 ms 5196 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 24 ms 5204 KB Output is correct
38 Correct 23 ms 5148 KB Output is correct
39 Correct 19 ms 5236 KB Output is correct
40 Correct 1543 ms 13088 KB Output is correct
41 Correct 1486 ms 12892 KB Output is correct
42 Correct 1590 ms 13172 KB Output is correct
43 Correct 1517 ms 12804 KB Output is correct
44 Correct 1398 ms 12628 KB Output is correct
45 Correct 1327 ms 12868 KB Output is correct
46 Correct 1256 ms 12756 KB Output is correct
47 Correct 1259 ms 12540 KB Output is correct
48 Correct 1338 ms 12896 KB Output is correct
49 Correct 1079 ms 10600 KB Output is correct
50 Correct 1231 ms 11496 KB Output is correct
51 Correct 1078 ms 10792 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 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 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 5016 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 5000 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 4 ms 4976 KB Output is correct
18 Correct 3 ms 4996 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 5 ms 5064 KB Output is correct
24 Correct 4 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 6 ms 4948 KB Output is correct
28 Correct 19 ms 5208 KB Output is correct
29 Correct 20 ms 5204 KB Output is correct
30 Correct 18 ms 5204 KB Output is correct
31 Correct 16 ms 5076 KB Output is correct
32 Correct 18 ms 5208 KB Output is correct
33 Correct 15 ms 5204 KB Output is correct
34 Correct 23 ms 5196 KB Output is correct
35 Correct 16 ms 5204 KB Output is correct
36 Correct 16 ms 5204 KB Output is correct
37 Correct 24 ms 5204 KB Output is correct
38 Correct 23 ms 5148 KB Output is correct
39 Correct 19 ms 5236 KB Output is correct
40 Correct 1543 ms 13088 KB Output is correct
41 Correct 1486 ms 12892 KB Output is correct
42 Correct 1590 ms 13172 KB Output is correct
43 Correct 1517 ms 12804 KB Output is correct
44 Correct 1398 ms 12628 KB Output is correct
45 Correct 1327 ms 12868 KB Output is correct
46 Correct 1256 ms 12756 KB Output is correct
47 Correct 1259 ms 12540 KB Output is correct
48 Correct 1338 ms 12896 KB Output is correct
49 Correct 1079 ms 10600 KB Output is correct
50 Correct 1231 ms 11496 KB Output is correct
51 Correct 1078 ms 10792 KB Output is correct
52 Incorrect 1878 ms 12800 KB Output isn't correct
53 Halted 0 ms 0 KB -