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Submission #536031

# Submission time Handle Problem Language Result Execution time Memory
536031 2022-03-12T07:28:32 Z inksamurai Osumnjičeni (COCI21_osumnjiceni) C++17
40 / 110
 1000 ms 16836 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,x,n) for(int i=x;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3HspL4A ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vec(int);
void print(){cout<<"\n";}
template<class T,class...E>
void print(const T&v,const E&...u){cout<<v<<' ',print(u...);}
// e

using vp=vec(pii);

const int inf=1e9+11;

int cross(int a,int b,int c,int d){
	if(c>=a and c<=b) return 1;
	if(a>=c and a<=d) return 1;
	if(d>=a and d<=b) return 1;
	if(b>=c and b<=d) return 1;
	return 0;
}

signed main(){
_3HspL4A;
	int n;
	cin>>n;
	vp a(n);
	rep(i,n){
		cin>>a[i].fi>>a[i].se;
	}
	
	vi tmp;
	rep(i,n){
		tmp.pb(a[i].fi);
		tmp.pb(a[i].se);
	}
	sort(tmp.begin(),tmp.end());
	tmp.erase(unique(tmp.begin(),tmp.end()),tmp.end());
	rep(i,n){
		a[i].fi=lower_bound(tmp.begin(),tmp.end(),a[i].fi)-tmp.begin();
		a[i].se=lower_bound(tmp.begin(),tmp.end(),a[i].se)-tmp.begin();
	}
	const int m=sz(tmp);

	multiset<pii> mst;
	vi nxt(n,-1);
	int j=0;
	rep(i,n){
		pii p=a[i];
		nxt[i]=i+1;
		if(!sz(mst)){
			mst.insert(p);
		}else{
			vi c={p.fi,p.se};
			while(1){
				bool pok=1;
				for(auto v:c){
					auto it=mst.lower_bound({v,-inf});
					if(it!=mst.end()){
						if(cross(it->fi,it->se,p.fi,p.se)) pok=0;
					}
					if(it!=mst.begin()){
						it=prev(it);
						if(cross(it->fi,it->se,p.fi,p.se)) pok=0;	
					}
				}	
				if(pok) break;
				mst.erase(mst.find({a[j].fi,a[j].se}));
				nxt[j]=i;
				j=j+1;
			}
			mst.insert(p);
		}
	}
	rng(k,j,n){
		nxt[k]=n;
	}
	int q;
	cin>>q;
	rep(_,q){
		int s,t;
		cin>>s>>t;
		s-=1;
		int i=s;
		int ans=0;
		while(1){
			if(i>=t) break;
			ans++;
			i=nxt[i];
		}
		print(ans);
	}
//	
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:52:12: warning: unused variable 'm' [-Wunused-variable]
   52 |  const int m=sz(tmp);
      |            ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 163 ms 4168 KB Output is correct
2 Correct 153 ms 7600 KB Output is correct
3 Correct 147 ms 7660 KB Output is correct
4 Correct 146 ms 7680 KB Output is correct
5 Correct 161 ms 8072 KB Output is correct
6 Correct 68 ms 7348 KB Output is correct
7 Correct 86 ms 7500 KB Output is correct
8 Correct 69 ms 7384 KB Output is correct
9 Correct 83 ms 7628 KB Output is correct
10 Correct 88 ms 7368 KB Output is correct
11 Correct 241 ms 16460 KB Output is correct
12 Correct 260 ms 15540 KB Output is correct
13 Correct 237 ms 15412 KB Output is correct
14 Correct 288 ms 12572 KB Output is correct
15 Correct 242 ms 11128 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 63 ms 7876 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 572 KB Output is correct
2 Correct 18 ms 596 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 18 ms 608 KB Output is correct
5 Correct 18 ms 584 KB Output is correct
6 Correct 18 ms 612 KB Output is correct
7 Correct 14 ms 616 KB Output is correct
8 Correct 12 ms 616 KB Output is correct
9 Correct 11 ms 608 KB Output is correct
10 Correct 8 ms 584 KB Output is correct
11 Correct 6 ms 776 KB Output is correct
12 Correct 6 ms 724 KB Output is correct
13 Correct 6 ms 760 KB Output is correct
14 Correct 8 ms 596 KB Output is correct
15 Correct 6 ms 596 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 50 ms 608 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 572 KB Output is correct
2 Correct 18 ms 596 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 18 ms 608 KB Output is correct
5 Correct 18 ms 584 KB Output is correct
6 Correct 18 ms 612 KB Output is correct
7 Correct 14 ms 616 KB Output is correct
8 Correct 12 ms 616 KB Output is correct
9 Correct 11 ms 608 KB Output is correct
10 Correct 8 ms 584 KB Output is correct
11 Correct 6 ms 776 KB Output is correct
12 Correct 6 ms 724 KB Output is correct
13 Correct 6 ms 760 KB Output is correct
14 Correct 8 ms 596 KB Output is correct
15 Correct 6 ms 596 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 50 ms 608 KB Output is correct
18 Correct 564 ms 3440 KB Output is correct
19 Correct 481 ms 3164 KB Output is correct
20 Correct 564 ms 3404 KB Output is correct
21 Correct 492 ms 3236 KB Output is correct
22 Correct 519 ms 3352 KB Output is correct
23 Correct 657 ms 3244 KB Output is correct
24 Correct 491 ms 3380 KB Output is correct
25 Correct 400 ms 3404 KB Output is correct
26 Correct 305 ms 3248 KB Output is correct
27 Correct 209 ms 3148 KB Output is correct
28 Correct 52 ms 2892 KB Output is correct
29 Correct 57 ms 3020 KB Output is correct
30 Correct 48 ms 3104 KB Output is correct
31 Correct 52 ms 2872 KB Output is correct
32 Correct 53 ms 2836 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Execution timed out 1089 ms 2160 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 4416 KB Output is correct
2 Correct 155 ms 7812 KB Output is correct
3 Correct 148 ms 7368 KB Output is correct
4 Correct 160 ms 7348 KB Output is correct
5 Correct 163 ms 7624 KB Output is correct
6 Correct 74 ms 7488 KB Output is correct
7 Correct 73 ms 7368 KB Output is correct
8 Correct 77 ms 7364 KB Output is correct
9 Correct 86 ms 7344 KB Output is correct
10 Correct 95 ms 7720 KB Output is correct
11 Correct 229 ms 15412 KB Output is correct
12 Correct 332 ms 16836 KB Output is correct
13 Correct 229 ms 15332 KB Output is correct
14 Correct 257 ms 11276 KB Output is correct
15 Correct 301 ms 12600 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 92 ms 7512 KB Output is correct

Subtask #5
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 163 ms 4168 KB Output is correct
2 Correct 153 ms 7600 KB Output is correct
3 Correct 147 ms 7660 KB Output is correct
4 Correct 146 ms 7680 KB Output is correct
5 Correct 161 ms 8072 KB Output is correct
6 Correct 68 ms 7348 KB Output is correct
7 Correct 86 ms 7500 KB Output is correct
8 Correct 69 ms 7384 KB Output is correct
9 Correct 83 ms 7628 KB Output is correct
10 Correct 88 ms 7368 KB Output is correct
11 Correct 241 ms 16460 KB Output is correct
12 Correct 260 ms 15540 KB Output is correct
13 Correct 237 ms 15412 KB Output is correct
14 Correct 288 ms 12572 KB Output is correct
15 Correct 242 ms 11128 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 63 ms 7876 KB Output is correct
18 Correct 18 ms 572 KB Output is correct
19 Correct 18 ms 596 KB Output is correct
20 Correct 18 ms 600 KB Output is correct
21 Correct 18 ms 608 KB Output is correct
22 Correct 18 ms 584 KB Output is correct
23 Correct 18 ms 612 KB Output is correct
24 Correct 14 ms 616 KB Output is correct
25 Correct 12 ms 616 KB Output is correct
26 Correct 11 ms 608 KB Output is correct
27 Correct 8 ms 584 KB Output is correct
28 Correct 6 ms 776 KB Output is correct
29 Correct 6 ms 724 KB Output is correct
30 Correct 6 ms 760 KB Output is correct
31 Correct 8 ms 596 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 50 ms 608 KB Output is correct
35 Correct 564 ms 3440 KB Output is correct
36 Correct 481 ms 3164 KB Output is correct
37 Correct 564 ms 3404 KB Output is correct
38 Correct 492 ms 3236 KB Output is correct
39 Correct 519 ms 3352 KB Output is correct
40 Correct 657 ms 3244 KB Output is correct
41 Correct 491 ms 3380 KB Output is correct
42 Correct 400 ms 3404 KB Output is correct
43 Correct 305 ms 3248 KB Output is correct
44 Correct 209 ms 3148 KB Output is correct
45 Correct 52 ms 2892 KB Output is correct
46 Correct 57 ms 3020 KB Output is correct
47 Correct 48 ms 3104 KB Output is correct
48 Correct 52 ms 2872 KB Output is correct
49 Correct 53 ms 2836 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Execution timed out 1089 ms 2160 KB Time limit exceeded
52 Halted 0 ms 0 KB -