답안 #404448

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
404448	2021-05-14T12:19:21 Z	CursedCode	Boat (APIO16_boat)	C++14	100 / 100	563 ms	4392 KB

boat

#include <stdio.h>
#include <map>
using namespace std;

const long long mod = 1000000007;
int inv[505];

int N,A[505],B[505],L[1005];
long long D[505][1005];

int main()
{
	inv[1] = 1;
	for (int i=2;i<505;i++) inv[i] = (mod - mod / i) * inv[mod % i] % mod;

	scanf ("%d",&N);
	map<int, int> chk;
	for (int i=1;i<=N;i++){
		scanf ("%d %d",&A[i],&B[i]);
		chk[A[i]] = chk[B[i]+1] = 0;
	}

	int c = 0, last = 0;
	for (auto &p : chk){
		L[c] = p.first - last;
		p.second = c++;
		last = p.first;
	}
	c--;

	for (int j=0;j<=c;j++) D[0][j] = 1;
	for (int i=1;i<=N;i++){
		A[i] = chk[A[i]] + 1; B[i] = chk[B[i]+1];
		D[i][0] = 1;
		for (int j=A[i];j<=B[i];j++){
			D[i][j] = (D[i][j] + L[j] * D[i-1][j-1]) % mod;
			long long comb = L[j] - 1; int c = 1;
			for (int k=i-1;k>0;k--){
				if (A[k] <= j && j <= B[k]){
					comb = comb * (L[j] - 1 + c) % mod;
					if (!comb) break;
					comb = comb * inv[++c] % mod;
					D[i][j] = (D[i][j] + comb * D[k-1][j-1]) % mod;
				}
			}
		}
		for (int j=1;j<=c;j++){
			D[i][j] = (D[i][j] + D[i][j-1] + D[i-1][j] - D[i-1][j-1] + mod) % mod;
		}
	}
	
	long long ans = 0;
	printf ("%lld\n",(D[N][c]+mod-1)%mod);

	return 0;
}

Compilation message

boat.cpp: In function 'int main()':
boat.cpp:52:12: warning: unused variable 'ans' [-Wunused-variable]
   52 |  long long ans = 0;
      |            ^~~
boat.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |  scanf ("%d",&N);
      |  ~~~~~~^~~~~~~~~
boat.cpp:19:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   scanf ("%d %d",&A[i],&B[i]);
      |   ~~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	4280 KB	Output is correct
2	Correct	9 ms	4172 KB	Output is correct
3	Correct	9 ms	4172 KB	Output is correct
4	Correct	10 ms	4172 KB	Output is correct
5	Correct	8 ms	4172 KB	Output is correct
6	Correct	8 ms	4248 KB	Output is correct
7	Correct	8 ms	4172 KB	Output is correct
8	Correct	9 ms	4176 KB	Output is correct
9	Correct	9 ms	4168 KB	Output is correct
10	Correct	9 ms	4260 KB	Output is correct
11	Correct	8 ms	4172 KB	Output is correct
12	Correct	8 ms	4172 KB	Output is correct
13	Correct	9 ms	4232 KB	Output is correct
14	Correct	8 ms	4172 KB	Output is correct
15	Correct	9 ms	4172 KB	Output is correct
16	Correct	3 ms	2892 KB	Output is correct
17	Correct	3 ms	3020 KB	Output is correct
18	Correct	3 ms	2960 KB	Output is correct
19	Correct	3 ms	3020 KB	Output is correct
20	Correct	3 ms	3020 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	4280 KB	Output is correct
2	Correct	9 ms	4172 KB	Output is correct
3	Correct	9 ms	4172 KB	Output is correct
4	Correct	10 ms	4172 KB	Output is correct
5	Correct	8 ms	4172 KB	Output is correct
6	Correct	8 ms	4248 KB	Output is correct
7	Correct	8 ms	4172 KB	Output is correct
8	Correct	9 ms	4176 KB	Output is correct
9	Correct	9 ms	4168 KB	Output is correct
10	Correct	9 ms	4260 KB	Output is correct
11	Correct	8 ms	4172 KB	Output is correct
12	Correct	8 ms	4172 KB	Output is correct
13	Correct	9 ms	4232 KB	Output is correct
14	Correct	8 ms	4172 KB	Output is correct
15	Correct	9 ms	4172 KB	Output is correct
16	Correct	3 ms	2892 KB	Output is correct
17	Correct	3 ms	3020 KB	Output is correct
18	Correct	3 ms	2960 KB	Output is correct
19	Correct	3 ms	3020 KB	Output is correct
20	Correct	3 ms	3020 KB	Output is correct
21	Correct	181 ms	4208 KB	Output is correct
22	Correct	174 ms	4192 KB	Output is correct
23	Correct	158 ms	4244 KB	Output is correct
24	Correct	177 ms	4164 KB	Output is correct
25	Correct	179 ms	4236 KB	Output is correct
26	Correct	371 ms	4164 KB	Output is correct
27	Correct	375 ms	4372 KB	Output is correct
28	Correct	389 ms	4256 KB	Output is correct
29	Correct	401 ms	4204 KB	Output is correct
30	Correct	8 ms	4172 KB	Output is correct
31	Correct	8 ms	4300 KB	Output is correct
32	Correct	8 ms	4172 KB	Output is correct
33	Correct	8 ms	4212 KB	Output is correct
34	Correct	8 ms	4280 KB	Output is correct
35	Correct	8 ms	4172 KB	Output is correct
36	Correct	9 ms	4260 KB	Output is correct
37	Correct	9 ms	4268 KB	Output is correct
38	Correct	9 ms	4172 KB	Output is correct

Subtask #3
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	844 KB	Output is correct
2	Correct	2 ms	844 KB	Output is correct
3	Correct	3 ms	844 KB	Output is correct
4	Correct	3 ms	844 KB	Output is correct
5	Correct	3 ms	844 KB	Output is correct
6	Correct	5 ms	844 KB	Output is correct
7	Correct	6 ms	776 KB	Output is correct
8	Correct	5 ms	844 KB	Output is correct
9	Correct	7 ms	788 KB	Output is correct
10	Correct	5 ms	844 KB	Output is correct
11	Correct	3 ms	844 KB	Output is correct
12	Correct	3 ms	844 KB	Output is correct
13	Correct	3 ms	844 KB	Output is correct
14	Correct	3 ms	844 KB	Output is correct
15	Correct	3 ms	844 KB	Output is correct
16	Correct	2 ms	716 KB	Output is correct
17	Correct	2 ms	716 KB	Output is correct
18	Correct	2 ms	716 KB	Output is correct
19	Correct	2 ms	716 KB	Output is correct
20	Correct	2 ms	716 KB	Output is correct

Subtask #4
42.0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	4280 KB	Output is correct
2	Correct	9 ms	4172 KB	Output is correct
3	Correct	9 ms	4172 KB	Output is correct
4	Correct	10 ms	4172 KB	Output is correct
5	Correct	8 ms	4172 KB	Output is correct
6	Correct	8 ms	4248 KB	Output is correct
7	Correct	8 ms	4172 KB	Output is correct
8	Correct	9 ms	4176 KB	Output is correct
9	Correct	9 ms	4168 KB	Output is correct
10	Correct	9 ms	4260 KB	Output is correct
11	Correct	8 ms	4172 KB	Output is correct
12	Correct	8 ms	4172 KB	Output is correct
13	Correct	9 ms	4232 KB	Output is correct
14	Correct	8 ms	4172 KB	Output is correct
15	Correct	9 ms	4172 KB	Output is correct
16	Correct	3 ms	2892 KB	Output is correct
17	Correct	3 ms	3020 KB	Output is correct
18	Correct	3 ms	2960 KB	Output is correct
19	Correct	3 ms	3020 KB	Output is correct
20	Correct	3 ms	3020 KB	Output is correct
21	Correct	181 ms	4208 KB	Output is correct
22	Correct	174 ms	4192 KB	Output is correct
23	Correct	158 ms	4244 KB	Output is correct
24	Correct	177 ms	4164 KB	Output is correct
25	Correct	179 ms	4236 KB	Output is correct
26	Correct	371 ms	4164 KB	Output is correct
27	Correct	375 ms	4372 KB	Output is correct
28	Correct	389 ms	4256 KB	Output is correct
29	Correct	401 ms	4204 KB	Output is correct
30	Correct	8 ms	4172 KB	Output is correct
31	Correct	8 ms	4300 KB	Output is correct
32	Correct	8 ms	4172 KB	Output is correct
33	Correct	8 ms	4212 KB	Output is correct
34	Correct	8 ms	4280 KB	Output is correct
35	Correct	8 ms	4172 KB	Output is correct
36	Correct	9 ms	4260 KB	Output is correct
37	Correct	9 ms	4268 KB	Output is correct
38	Correct	9 ms	4172 KB	Output is correct
39	Correct	3 ms	844 KB	Output is correct
40	Correct	2 ms	844 KB	Output is correct
41	Correct	3 ms	844 KB	Output is correct
42	Correct	3 ms	844 KB	Output is correct
43	Correct	3 ms	844 KB	Output is correct
44	Correct	5 ms	844 KB	Output is correct
45	Correct	6 ms	776 KB	Output is correct
46	Correct	5 ms	844 KB	Output is correct
47	Correct	7 ms	788 KB	Output is correct
48	Correct	5 ms	844 KB	Output is correct
49	Correct	3 ms	844 KB	Output is correct
50	Correct	3 ms	844 KB	Output is correct
51	Correct	3 ms	844 KB	Output is correct
52	Correct	3 ms	844 KB	Output is correct
53	Correct	3 ms	844 KB	Output is correct
54	Correct	2 ms	716 KB	Output is correct
55	Correct	2 ms	716 KB	Output is correct
56	Correct	2 ms	716 KB	Output is correct
57	Correct	2 ms	716 KB	Output is correct
58	Correct	2 ms	716 KB	Output is correct
59	Correct	250 ms	4376 KB	Output is correct
60	Correct	214 ms	4212 KB	Output is correct
61	Correct	202 ms	4164 KB	Output is correct
62	Correct	243 ms	4324 KB	Output is correct
63	Correct	238 ms	4208 KB	Output is correct
64	Correct	554 ms	4284 KB	Output is correct
65	Correct	548 ms	4256 KB	Output is correct
66	Correct	550 ms	4332 KB	Output is correct
67	Correct	553 ms	4392 KB	Output is correct
68	Correct	563 ms	4172 KB	Output is correct
69	Correct	209 ms	4236 KB	Output is correct
70	Correct	208 ms	4204 KB	Output is correct
71	Correct	208 ms	4240 KB	Output is correct
72	Correct	225 ms	4256 KB	Output is correct
73	Correct	223 ms	4248 KB	Output is correct
74	Correct	28 ms	2940 KB	Output is correct
75	Correct	26 ms	2924 KB	Output is correct
76	Correct	27 ms	3048 KB	Output is correct
77	Correct	27 ms	3012 KB	Output is correct
78	Correct	31 ms	3092 KB	Output is correct

답안 #404448

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 27.0 / 27.0

Subtask #4 42.0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
27.0 / 27.0

Subtask #4
42.0 / 42.0