oj.uz

Submission #814488

# Submission time Handle Problem Language Result Execution time Memory
814488 2023-08-08T07:51:35 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
45 / 100
 6000 ms 5228 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];
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;
bool ok2(int c,int d){
	for(int i=1;i<=n;i++){
		w[i]=c-m+in[i]+d;
		if(w[i]<0) return false;
		w[i]/=2;
	}
	T.init(1,1,n);
	int ret=0;
	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>=d;
}
bool ok(int c){
	for(int i=0;i<=n;i++) if(ok2(c,i)){
		//debug(c,i);
		return true;
	}
	return false;
}
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]);
		for(int j=a[i][0];j<a[i][1];j++) in[j]++;
		v[a[i][1]-1].emplace_back(a[i][0]);
	}
	for(int i=1;i<=n;i++) sort(v[i].begin(),v[i].end(),greater<>());
	int L=1,R=m-1,ans=m;
	while(L<=R){
		int M=(L+R)>>1;
		if(ok(M)){
			ans=M;
			R=M-1;
		} else 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 3 ms 4948 KB Output is correct
4 Correct 2 ms 4932 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5028 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 5028 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 5032 KB Output is correct
12 Correct 2 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5040 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 2 ms 4932 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5028 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 5028 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 5032 KB Output is correct
12 Correct 2 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5040 KB Output is correct
16 Correct 17 ms 5072 KB Output is correct
17 Correct 17 ms 4948 KB Output is correct
18 Correct 14 ms 4948 KB Output is correct
19 Correct 20 ms 5076 KB Output is correct
20 Correct 15 ms 5028 KB Output is correct
21 Correct 25 ms 5072 KB Output is correct
22 Correct 24 ms 5032 KB Output is correct
23 Correct 13 ms 5072 KB Output is correct
24 Correct 17 ms 5076 KB Output is correct
25 Correct 30 ms 5080 KB Output is correct
26 Correct 15 ms 4948 KB Output is correct
27 Correct 14 ms 5072 KB Output is correct

Subtask #3
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 2 ms 4932 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5028 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 5028 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 5032 KB Output is correct
12 Correct 2 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5040 KB Output is correct
16 Correct 17 ms 5072 KB Output is correct
17 Correct 17 ms 4948 KB Output is correct
18 Correct 14 ms 4948 KB Output is correct
19 Correct 20 ms 5076 KB Output is correct
20 Correct 15 ms 5028 KB Output is correct
21 Correct 25 ms 5072 KB Output is correct
22 Correct 24 ms 5032 KB Output is correct
23 Correct 13 ms 5072 KB Output is correct
24 Correct 17 ms 5076 KB Output is correct
25 Correct 30 ms 5080 KB Output is correct
26 Correct 15 ms 4948 KB Output is correct
27 Correct 14 ms 5072 KB Output is correct
28 Correct 1935 ms 5224 KB Output is correct
29 Correct 4680 ms 5220 KB Output is correct
30 Correct 3580 ms 5228 KB Output is correct
31 Correct 4866 ms 5220 KB Output is correct
32 Correct 3945 ms 5216 KB Output is correct
33 Correct 4842 ms 5224 KB Output is correct
34 Execution timed out 6005 ms 5204 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
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 2 ms 4932 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5028 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 5028 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 5032 KB Output is correct
12 Correct 2 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5040 KB Output is correct
16 Correct 17 ms 5072 KB Output is correct
17 Correct 17 ms 4948 KB Output is correct
18 Correct 14 ms 4948 KB Output is correct
19 Correct 20 ms 5076 KB Output is correct
20 Correct 15 ms 5028 KB Output is correct
21 Correct 25 ms 5072 KB Output is correct
22 Correct 24 ms 5032 KB Output is correct
23 Correct 13 ms 5072 KB Output is correct
24 Correct 17 ms 5076 KB Output is correct
25 Correct 30 ms 5080 KB Output is correct
26 Correct 15 ms 4948 KB Output is correct
27 Correct 14 ms 5072 KB Output is correct
28 Correct 1935 ms 5224 KB Output is correct
29 Correct 4680 ms 5220 KB Output is correct
30 Correct 3580 ms 5228 KB Output is correct
31 Correct 4866 ms 5220 KB Output is correct
32 Correct 3945 ms 5216 KB Output is correct
33 Correct 4842 ms 5224 KB Output is correct
34 Execution timed out 6005 ms 5204 KB Time limit exceeded
35 Halted 0 ms 0 KB -

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 2 ms 4932 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5028 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 5028 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 5032 KB Output is correct
12 Correct 2 ms 5032 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5040 KB Output is correct
16 Correct 17 ms 5072 KB Output is correct
17 Correct 17 ms 4948 KB Output is correct
18 Correct 14 ms 4948 KB Output is correct
19 Correct 20 ms 5076 KB Output is correct
20 Correct 15 ms 5028 KB Output is correct
21 Correct 25 ms 5072 KB Output is correct
22 Correct 24 ms 5032 KB Output is correct
23 Correct 13 ms 5072 KB Output is correct
24 Correct 17 ms 5076 KB Output is correct
25 Correct 30 ms 5080 KB Output is correct
26 Correct 15 ms 4948 KB Output is correct
27 Correct 14 ms 5072 KB Output is correct
28 Correct 1935 ms 5224 KB Output is correct
29 Correct 4680 ms 5220 KB Output is correct
30 Correct 3580 ms 5228 KB Output is correct
31 Correct 4866 ms 5220 KB Output is correct
32 Correct 3945 ms 5216 KB Output is correct
33 Correct 4842 ms 5224 KB Output is correct
34 Execution timed out 6005 ms 5204 KB Time limit exceeded
35 Halted 0 ms 0 KB -