Submission #745003

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
745003	2023-05-19T09:49:16 Z	amirhoseinfar1385	Boat (APIO16_boat)	C++17	31 / 100	495 ms	524288 KB

boat

#include<bits/stdc++.h>
using namespace std;
int mod=1e9+7;

struct fen{
	long long fn[(1<<20)];
	void upd(int i,long long w){
		i++;
		while(i<(1<<20)){
			fn[i]+=w;
			fn[i]%=mod;
			i+=(-i)&i;
		}
	}
	long long pors(int i){
		i++;
		long long ret=0;
		while(i>0){
			ret+=fn[i];
			i-=(-i)&i;
		}
		ret%=mod;
		return ret;
	}
}fenw;

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin>>n;
	vector<pair<int,int>>all(n);
	vector<int>allind;
	for(int i=0;i<n;i++){
		cin>>all[i].first>>all[i].second;
		for(int j=all[i].first;j<=all[i].second;j++)
		{
			allind.push_back(j);
		}
	}
	allind.push_back(0);
	sort(allind.begin(),allind.end());
	allind.resize(unique(allind.begin(),allind.end())-allind.begin());
	fenw.upd(0,1);
	for(int i=0;i<n;i++){
		int lp=lower_bound(allind.begin(),allind.end(),all[i].first)-allind.begin();
		for(int j=all[i].second-all[i].first;j>=0;j--){
			fenw.upd(lp+j,fenw.pors(lp+j-1));
		}
	}
	long long res=fenw.pors((int)allind.size());
	res+=mod-1;
	res%=mod;
	cout<<res<<"\n";
}

Subtask #1

9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #2

22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	148 ms	4544 KB	Output is correct
22	Correct	140 ms	4556 KB	Output is correct
23	Correct	134 ms	4552 KB	Output is correct
24	Correct	142 ms	4556 KB	Output is correct
25	Correct	148 ms	4556 KB	Output is correct
26	Correct	156 ms	4556 KB	Output is correct
27	Correct	162 ms	4548 KB	Output is correct
28	Correct	163 ms	4548 KB	Output is correct
29	Correct	161 ms	4556 KB	Output is correct
30	Correct	143 ms	12040 KB	Output is correct
31	Correct	182 ms	11832 KB	Output is correct
32	Correct	185 ms	12084 KB	Output is correct
33	Correct	180 ms	11780 KB	Output is correct
34	Correct	180 ms	11852 KB	Output is correct
35	Correct	137 ms	11320 KB	Output is correct
36	Correct	139 ms	11656 KB	Output is correct
37	Correct	139 ms	11808 KB	Output is correct
38	Correct	134 ms	11456 KB	Output is correct

Subtask #3

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	495 ms	524288 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #4

0 / 42.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	148 ms	4544 KB	Output is correct
22	Correct	140 ms	4556 KB	Output is correct
23	Correct	134 ms	4552 KB	Output is correct
24	Correct	142 ms	4556 KB	Output is correct
25	Correct	148 ms	4556 KB	Output is correct
26	Correct	156 ms	4556 KB	Output is correct
27	Correct	162 ms	4548 KB	Output is correct
28	Correct	163 ms	4548 KB	Output is correct
29	Correct	161 ms	4556 KB	Output is correct
30	Correct	143 ms	12040 KB	Output is correct
31	Correct	182 ms	11832 KB	Output is correct
32	Correct	185 ms	12084 KB	Output is correct
33	Correct	180 ms	11780 KB	Output is correct
34	Correct	180 ms	11852 KB	Output is correct
35	Correct	137 ms	11320 KB	Output is correct
36	Correct	139 ms	11656 KB	Output is correct
37	Correct	139 ms	11808 KB	Output is correct
38	Correct	134 ms	11456 KB	Output is correct
39	Runtime error	495 ms	524288 KB	Execution killed with signal 9
40	Halted	0 ms	0 KB	-