답안 #672249

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
672249	2022-12-15T08:28:39 Z	Dan4Life	Boat (APIO16_boat)	C++17	31 / 100	1437 ms	524288 KB

boat

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define se second
const int maxn = 5e2+10;
const int MOD = (int)1e9+7;
pair<int,int> a[maxn];
vector<int> dp[maxn];
int n;

int32_t main() {
	cin >> n; int ans = 0;
	for(int i = 0; i < n; i++) cin >> a[i].fi >> a[i].se;
	for(int i = 0; i < n; i++){
		dp[i].resize(a[i].se-a[i].fi+1,0);
		int x = a[i].fi;
		for(int j = 0; j <= a[i].se-x; j++){
			dp[i][j]=1; 
			if(j) dp[i][j]+=dp[i][j-1];
			if(dp[i][j]>MOD) dp[i][j]-=MOD;
			for(int k = 0; k < i; k++){
				if(j+x>a[k].fi) dp[i][j]+=dp[k][min(j+x-1,a[k].se)-a[k].fi];
				if(dp[i][j]>MOD) dp[i][j]-=MOD;
			}
		}
	}
	for(int i = 0; i < n; i++) ans+=dp[i][a[i].se-a[i].fi], ans-=(ans>MOD?MOD:0);
	cout << ans;
}

Subtask #1

9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct

Subtask #2

22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	1414 ms	3680 KB	Output is correct
22	Correct	1392 ms	3680 KB	Output is correct
23	Correct	1260 ms	3500 KB	Output is correct
24	Correct	1407 ms	3724 KB	Output is correct
25	Correct	1383 ms	3796 KB	Output is correct
26	Correct	1356 ms	4044 KB	Output is correct
27	Correct	1411 ms	4100 KB	Output is correct
28	Correct	1376 ms	4076 KB	Output is correct
29	Correct	1437 ms	4096 KB	Output is correct
30	Correct	1394 ms	4148 KB	Output is correct
31	Correct	1383 ms	4300 KB	Output is correct
32	Correct	1382 ms	4188 KB	Output is correct
33	Correct	1331 ms	4300 KB	Output is correct
34	Correct	1363 ms	4276 KB	Output is correct
35	Correct	724 ms	3928 KB	Output is correct
36	Correct	852 ms	3992 KB	Output is correct
37	Correct	831 ms	4028 KB	Output is correct
38	Correct	857 ms	3916 KB	Output is correct

Subtask #3

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	222 ms	524288 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	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	2 ms	212 KB	Output is correct
21	Correct	1414 ms	3680 KB	Output is correct
22	Correct	1392 ms	3680 KB	Output is correct
23	Correct	1260 ms	3500 KB	Output is correct
24	Correct	1407 ms	3724 KB	Output is correct
25	Correct	1383 ms	3796 KB	Output is correct
26	Correct	1356 ms	4044 KB	Output is correct
27	Correct	1411 ms	4100 KB	Output is correct
28	Correct	1376 ms	4076 KB	Output is correct
29	Correct	1437 ms	4096 KB	Output is correct
30	Correct	1394 ms	4148 KB	Output is correct
31	Correct	1383 ms	4300 KB	Output is correct
32	Correct	1382 ms	4188 KB	Output is correct
33	Correct	1331 ms	4300 KB	Output is correct
34	Correct	1363 ms	4276 KB	Output is correct
35	Correct	724 ms	3928 KB	Output is correct
36	Correct	852 ms	3992 KB	Output is correct
37	Correct	831 ms	4028 KB	Output is correct
38	Correct	857 ms	3916 KB	Output is correct
39	Runtime error	222 ms	524288 KB	Execution killed with signal 9
40	Halted	0 ms	0 KB	-