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Submission #944554

# Submission time Handle Problem Language Result Execution time Memory
944554 2024-03-12T22:52:05 Z MilosMilutinovic None (JOI16_worst_reporter2) C++14
100 / 100
 308 ms 52564 KB 
#include<bits/stdc++.h>
 
#define pb push_back
#define fi first
#define se second
#define mp make_pair
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef long double ld;
 
template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;}
template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;}
 
ll readint(){
	ll x=0,f=1; char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}

int n;
int a[200005],b[200005],c[200005],d[200005];
multiset<int> pos[200005],col[200005];
bool act[200005],took[200005];

struct node{
	int sum,mn,idx;
}st[800005];

node operator+(node a,node b){
	node ret;
	ret.sum=a.sum+b.sum;
	ret.mn=min(a.mn+b.sum,b.mn);
	ret.idx=(ret.mn==a.mn+b.sum?a.idx:b.idx);
	return ret;
}

void build(int id,int l,int r){
	st[id].sum=st[id].mn=0;
	if(l==r) return (void)(st[id].idx=l);
	int mid=(l+r)/2;
	build(id<<1,l,mid);
	build(id<<1|1,mid+1,r);
	st[id]=st[id<<1]+st[id<<1|1];
}

void change(int id,int l,int r,int p,int v){
	if(l==r) return (void)(st[id].sum+=v,st[id].mn+=v);
	int mid=(l+r)/2;
	if(p<=mid) change(id<<1,l,mid,p,v);
	else change(id<<1|1,mid+1,r,p,v);
	st[id]=st[id<<1]+st[id<<1|1];
}

node query(int id,int l,int r,int ql,int qr){
	if(ql<=l&&r<=qr) return st[id];
	int mid=(l+r)/2;
	if(qr<=mid) return query(id<<1,l,mid,ql,qr);
	else if(ql>mid) return query(id<<1|1,mid+1,r,ql,qr);
	else return query(id<<1,l,mid,ql,qr)+query(id<<1|1,mid+1,r,ql,qr);
}

int main(){
	n=readint();
	for(int i=1;i<=n;i++) a[i]=readint(),b[i]=readint();
	for(int i=1;i<=n;i++) c[i]=readint(),d[i]=readint();
	build(1,1,n);
	int ans=n,ptr=n,brd=n;
	for(int i=n;i>=1;i--){
		while(ptr>=1&&b[ptr]<=d[i]){
			pos[a[ptr]].insert(i);
			col[i].insert(a[ptr]);
			change(1,1,n,i,+1);
			ptr--;
		}
		change(1,1,n,i,-1);
		act[i]=true;
		if(!pos[c[i]].empty()){
			change(1,1,n,i,+1);
			int idx=*pos[c[i]].begin();
			pos[c[i]].erase(pos[c[i]].begin());
			change(1,1,n,idx,-1);
			col[idx].erase(col[idx].find(c[i]));
			act[i]=false;
			ans--;
		}
		int j=query(1,1,n,i,n).idx;
		if(j<=brd&&query(1,1,n,j,n).sum==0){
			for(int k=j;k<=brd;k++){
				for(auto&p:col[k]){
					while(pos[p].find(k)!=pos[p].end()){
						change(1,1,n,k,-1);
						pos[p].erase(pos[p].find(k));
					}
				}
				col[k].clear();
				if(act[k]){
					change(1,1,n,k,1);
					act[k]=false;
				}
			}
			brd=j-1;
		}
	}
	printf("%d\n",ans);
	return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 5 ms 23004 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 5 ms 23016 KB Output is correct
11 Correct 5 ms 22872 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 5 ms 23004 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 5 ms 23016 KB Output is correct
11 Correct 5 ms 22872 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 4 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 22876 KB Output is correct
16 Correct 4 ms 22996 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 4 ms 22876 KB Output is correct
19 Correct 4 ms 22872 KB Output is correct
20 Correct 5 ms 22876 KB Output is correct
21 Correct 5 ms 22876 KB Output is correct
22 Correct 5 ms 22872 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 5 ms 23004 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 5 ms 23016 KB Output is correct
11 Correct 5 ms 22872 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 4 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 22876 KB Output is correct
16 Correct 4 ms 22996 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 4 ms 22876 KB Output is correct
19 Correct 4 ms 22872 KB Output is correct
20 Correct 5 ms 22876 KB Output is correct
21 Correct 5 ms 22876 KB Output is correct
22 Correct 5 ms 22872 KB Output is correct
23 Correct 9 ms 25432 KB Output is correct
24 Correct 8 ms 25436 KB Output is correct
25 Correct 8 ms 25436 KB Output is correct
26 Correct 8 ms 25180 KB Output is correct
27 Correct 9 ms 25692 KB Output is correct
28 Correct 8 ms 25180 KB Output is correct
29 Correct 8 ms 25180 KB Output is correct
30 Correct 8 ms 25176 KB Output is correct
31 Correct 8 ms 25180 KB Output is correct
32 Correct 10 ms 25644 KB Output is correct
33 Correct 9 ms 25176 KB Output is correct
34 Correct 9 ms 25432 KB Output is correct
35 Correct 8 ms 25328 KB Output is correct
36 Correct 8 ms 25180 KB Output is correct
37 Correct 9 ms 25584 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 5 ms 23004 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 5 ms 23016 KB Output is correct
11 Correct 5 ms 22872 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 4 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 22876 KB Output is correct
16 Correct 4 ms 22996 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 4 ms 22876 KB Output is correct
19 Correct 4 ms 22872 KB Output is correct
20 Correct 5 ms 22876 KB Output is correct
21 Correct 5 ms 22876 KB Output is correct
22 Correct 5 ms 22872 KB Output is correct
23 Correct 9 ms 25432 KB Output is correct
24 Correct 8 ms 25436 KB Output is correct
25 Correct 8 ms 25436 KB Output is correct
26 Correct 8 ms 25180 KB Output is correct
27 Correct 9 ms 25692 KB Output is correct
28 Correct 8 ms 25180 KB Output is correct
29 Correct 8 ms 25180 KB Output is correct
30 Correct 8 ms 25176 KB Output is correct
31 Correct 8 ms 25180 KB Output is correct
32 Correct 10 ms 25644 KB Output is correct
33 Correct 9 ms 25176 KB Output is correct
34 Correct 9 ms 25432 KB Output is correct
35 Correct 8 ms 25328 KB Output is correct
36 Correct 8 ms 25180 KB Output is correct
37 Correct 9 ms 25584 KB Output is correct
38 Correct 191 ms 38140 KB Output is correct
39 Correct 193 ms 36580 KB Output is correct
40 Correct 185 ms 38024 KB Output is correct
41 Correct 176 ms 35252 KB Output is correct
42 Correct 308 ms 52564 KB Output is correct
43 Correct 172 ms 34420 KB Output is correct
44 Correct 177 ms 34444 KB Output is correct
45 Correct 177 ms 34576 KB Output is correct
46 Correct 158 ms 34132 KB Output is correct
47 Correct 230 ms 49488 KB Output is correct
48 Correct 176 ms 33992 KB Output is correct
49 Correct 193 ms 34092 KB Output is correct
50 Correct 179 ms 33992 KB Output is correct
51 Correct 174 ms 33904 KB Output is correct
52 Correct 227 ms 48008 KB Output is correct