답안 #301761

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
301761	2020-09-18T07:35:36 Z	CSQ31	Boat (APIO16_boat)	C++14	31 / 100	574 ms	524292 KB

boat

#pragma GCC optimize("Ofast") 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) a.size()
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e9+7)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int MAXN = 1e6+1e5;
ll bit[MAXN];
void upd(int pos,ll val){
	for(int i=pos;i<MAXN;i+=i&(-i)){
		bit[i]+=val;
		bit[i]%=MOD;
	}
}
ll query(int pos){
	ll res=0;
	for(int i=pos;i>0;i-=i&(-i)){
		res+=bit[i];
		res%=MOD;
	}
	return res;
}
ll a[550];
ll b[550];
int main()
{
	int n;
	cin>>n;
	vector<ll>coords;
	for(int i=1;i<=n;i++){
		cin>>a[i]>>b[i];
		for(int j=a[i];j<=b[i];j++)coords.pb(j);
	}
	int sz = coords.size();
	sort(all(coords));
	coords.resize(unique(all(coords))-coords.begin());
	map<int,int>mp;
	//cout<<sz<<'\n';
	for(int i=0;i<sz;i++){
		mp[coords[i]] = i+1;
	}
	ll ans = 0;
	for(int i=1;i<=n;i++){
		for(int j=b[i];j>=a[i];j--){
			int p = mp[j];
			ll res = query(p-1);
			res%=MOD;
			upd(p,res+1);
		}
	}
	for(int i=1;i<=sz;i++){
		ans+=query(i)-query(i-1);
		ans%=MOD;
	}
	cout<<ans%MOD;;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	2 ms	512 KB	Output is correct
6	Correct	2 ms	512 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	2 ms	512 KB	Output is correct
6	Correct	2 ms	512 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	280 ms	14288 KB	Output is correct
22	Correct	290 ms	14160 KB	Output is correct
23	Correct	267 ms	13456 KB	Output is correct
24	Correct	301 ms	14672 KB	Output is correct
25	Correct	304 ms	15012 KB	Output is correct
26	Correct	287 ms	15696 KB	Output is correct
27	Correct	297 ms	15824 KB	Output is correct
28	Correct	285 ms	15696 KB	Output is correct
29	Correct	295 ms	15952 KB	Output is correct
30	Correct	554 ms	62288 KB	Output is correct
31	Correct	574 ms	61216 KB	Output is correct
32	Correct	558 ms	62416 KB	Output is correct
33	Correct	551 ms	60752 KB	Output is correct
34	Correct	558 ms	61264 KB	Output is correct
35	Correct	529 ms	58448 KB	Output is correct
36	Correct	551 ms	60496 KB	Output is correct
37	Correct	559 ms	61264 KB	Output is correct
38	Correct	532 ms	59216 KB	Output is correct

Subtask #3
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	459 ms	524292 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	2 ms	512 KB	Output is correct
6	Correct	2 ms	512 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	280 ms	14288 KB	Output is correct
22	Correct	290 ms	14160 KB	Output is correct
23	Correct	267 ms	13456 KB	Output is correct
24	Correct	301 ms	14672 KB	Output is correct
25	Correct	304 ms	15012 KB	Output is correct
26	Correct	287 ms	15696 KB	Output is correct
27	Correct	297 ms	15824 KB	Output is correct
28	Correct	285 ms	15696 KB	Output is correct
29	Correct	295 ms	15952 KB	Output is correct
30	Correct	554 ms	62288 KB	Output is correct
31	Correct	574 ms	61216 KB	Output is correct
32	Correct	558 ms	62416 KB	Output is correct
33	Correct	551 ms	60752 KB	Output is correct
34	Correct	558 ms	61264 KB	Output is correct
35	Correct	529 ms	58448 KB	Output is correct
36	Correct	551 ms	60496 KB	Output is correct
37	Correct	559 ms	61264 KB	Output is correct
38	Correct	532 ms	59216 KB	Output is correct
39	Runtime error	459 ms	524292 KB	Execution killed with signal 9
40	Halted	0 ms	0 KB	-

답안 #301761

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 0 / 27.0

Subtask #4 0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
0 / 27.0

Subtask #4
0 / 42.0