oj.uz

Submission #814515

# Submission time Handle Problem Language Result Execution time Memory
814515 2023-08-08T08:04:52 Z 이종영(#10372) Arranging Tickets (JOI17_arranging_tickets) C++17
65 / 100
 6000 ms 14444 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],mx[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;
void Do(int 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);
			mx[s]++;
		}
	}
}
bool ok(int c){
	for(int i=m-c;i<=n;i++) if(mx[c+i]>=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<>());
	for(int i=m;i<=n+m-1;i++) Do(i);
	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 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 2 ms 4948 KB Output is correct
5 Correct 4 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 3 ms 5060 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 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 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 3 ms 5060 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 11 ms 5072 KB Output is correct
17 Correct 12 ms 5076 KB Output is correct
18 Correct 13 ms 5072 KB Output is correct
19 Correct 11 ms 5084 KB Output is correct
20 Correct 11 ms 5076 KB Output is correct
21 Correct 15 ms 5076 KB Output is correct
22 Correct 14 ms 5080 KB Output is correct
23 Correct 11 ms 5080 KB Output is correct
24 Correct 11 ms 5076 KB Output is correct
25 Correct 11 ms 5072 KB Output is correct
26 Correct 11 ms 5080 KB Output is correct
27 Correct 11 ms 5084 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 2 ms 4948 KB Output is correct
5 Correct 4 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 3 ms 5060 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 11 ms 5072 KB Output is correct
17 Correct 12 ms 5076 KB Output is correct
18 Correct 13 ms 5072 KB Output is correct
19 Correct 11 ms 5084 KB Output is correct
20 Correct 11 ms 5076 KB Output is correct
21 Correct 15 ms 5076 KB Output is correct
22 Correct 14 ms 5080 KB Output is correct
23 Correct 11 ms 5080 KB Output is correct
24 Correct 11 ms 5076 KB Output is correct
25 Correct 11 ms 5072 KB Output is correct
26 Correct 11 ms 5080 KB Output is correct
27 Correct 11 ms 5084 KB Output is correct
28 Correct 2140 ms 5208 KB Output is correct
29 Correct 2109 ms 5208 KB Output is correct
30 Correct 2093 ms 5212 KB Output is correct
31 Correct 1984 ms 5208 KB Output is correct
32 Correct 1922 ms 5204 KB Output is correct
33 Correct 2003 ms 5220 KB Output is correct
34 Correct 1888 ms 5192 KB Output is correct
35 Correct 2028 ms 5244 KB Output is correct
36 Correct 2041 ms 5252 KB Output is correct
37 Correct 2032 ms 5368 KB Output is correct
38 Correct 1722 ms 5284 KB Output is correct
39 Correct 2176 ms 5280 KB Output is correct

Subtask #4
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 2 ms 4948 KB Output is correct
5 Correct 4 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 3 ms 5060 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 11 ms 5072 KB Output is correct
17 Correct 12 ms 5076 KB Output is correct
18 Correct 13 ms 5072 KB Output is correct
19 Correct 11 ms 5084 KB Output is correct
20 Correct 11 ms 5076 KB Output is correct
21 Correct 15 ms 5076 KB Output is correct
22 Correct 14 ms 5080 KB Output is correct
23 Correct 11 ms 5080 KB Output is correct
24 Correct 11 ms 5076 KB Output is correct
25 Correct 11 ms 5072 KB Output is correct
26 Correct 11 ms 5080 KB Output is correct
27 Correct 11 ms 5084 KB Output is correct
28 Correct 2140 ms 5208 KB Output is correct
29 Correct 2109 ms 5208 KB Output is correct
30 Correct 2093 ms 5212 KB Output is correct
31 Correct 1984 ms 5208 KB Output is correct
32 Correct 1922 ms 5204 KB Output is correct
33 Correct 2003 ms 5220 KB Output is correct
34 Correct 1888 ms 5192 KB Output is correct
35 Correct 2028 ms 5244 KB Output is correct
36 Correct 2041 ms 5252 KB Output is correct
37 Correct 2032 ms 5368 KB Output is correct
38 Correct 1722 ms 5284 KB Output is correct
39 Correct 2176 ms 5280 KB Output is correct
40 Execution timed out 6044 ms 14444 KB Time limit exceeded
41 Halted 0 ms 0 KB -

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 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 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 3 ms 5060 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 11 ms 5072 KB Output is correct
17 Correct 12 ms 5076 KB Output is correct
18 Correct 13 ms 5072 KB Output is correct
19 Correct 11 ms 5084 KB Output is correct
20 Correct 11 ms 5076 KB Output is correct
21 Correct 15 ms 5076 KB Output is correct
22 Correct 14 ms 5080 KB Output is correct
23 Correct 11 ms 5080 KB Output is correct
24 Correct 11 ms 5076 KB Output is correct
25 Correct 11 ms 5072 KB Output is correct
26 Correct 11 ms 5080 KB Output is correct
27 Correct 11 ms 5084 KB Output is correct
28 Correct 2140 ms 5208 KB Output is correct
29 Correct 2109 ms 5208 KB Output is correct
30 Correct 2093 ms 5212 KB Output is correct
31 Correct 1984 ms 5208 KB Output is correct
32 Correct 1922 ms 5204 KB Output is correct
33 Correct 2003 ms 5220 KB Output is correct
34 Correct 1888 ms 5192 KB Output is correct
35 Correct 2028 ms 5244 KB Output is correct
36 Correct 2041 ms 5252 KB Output is correct
37 Correct 2032 ms 5368 KB Output is correct
38 Correct 1722 ms 5284 KB Output is correct
39 Correct 2176 ms 5280 KB Output is correct
40 Execution timed out 6044 ms 14444 KB Time limit exceeded
41 Halted 0 ms 0 KB -