답안 #108412

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108412	2019-04-29T06:49:41 Z	nxteru	Boat (APIO16_boat)	C++14	58 / 100	2000 ms	12140 KB

boat

#include <bits/stdc++.h>
#pragma GCC target ("avx2")
//#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
using namespace std;
typedef long long ll;
#define M 1000000007
#define PB push_back
ll n,a[505],b[505],dp[505][1005],s[1005][505],f[505],ans,r[1005][505],l[505];
vector<ll>cm;
int main(void){
    scanf("%lld",&n);
    f[1]=1;
    for(int i=2;i<n;i++)f[i]=M-(M/i)*f[M%i]%M;
    for(int i=0;i<n;i++){
		scanf("%lld%lld",a+i,b+i);
		a[i]--;
		cm.PB(a[i]);
		cm.PB(b[i]);
	}
	sort(cm.begin(),cm.end());
	cm.erase(unique(cm.begin(),cm.end()),cm.end());
	for(int i=0;i<n;i++){
		a[i]=lower_bound(cm.begin(),cm.end(),a[i])-cm.begin();
		b[i]=lower_bound(cm.begin(),cm.end(),b[i])-cm.begin();
	}
	for(int i=n-1;i>=0;i--){
		for(int j=1;j<cm.size();j++){
			if(a[i]<j&&j<=b[i])r[j][i]++;
			r[j][i]+=r[j][i+1];
		}
	}
	for(int i=1;i<cm.size();i++){
		ll p=cm[i]-cm[i-1];
		s[i][0]=1;
		for(ll j=1;j<n;j++){
			s[i][j]=s[i][j-1]*(p+j-1LL)%M*f[j]%M;
		}
	}
	for(int i=0;i<n;i++){
		ll p=1;
		for(int j=1;j<=b[i];j++){
			if(j>a[i]){
				dp[i][j]=p;
				ans=(ans+p*s[j][r[j][i]]%M)%M;
			}
			for(int k=0;k<i;k++)p=(p+dp[k][j]*s[j][r[j][k]-r[j][i]]%M)%M;
		}
	}
	printf("%lld\n",ans);
}

Compilation message

boat.cpp: In function 'int main()':
boat.cpp:28:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=1;j<cm.size();j++){
               ~^~~~~~~~~~
boat.cpp:33:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<cm.size();i++){
              ~^~~~~~~~~~
boat.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
boat.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld",a+i,b+i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	684 ms	10280 KB	Output is correct
2	Correct	654 ms	10216 KB	Output is correct
3	Correct	627 ms	10232 KB	Output is correct
4	Correct	568 ms	10204 KB	Output is correct
5	Correct	651 ms	10408 KB	Output is correct
6	Correct	628 ms	10488 KB	Output is correct
7	Correct	651 ms	10360 KB	Output is correct
8	Correct	588 ms	10244 KB	Output is correct
9	Correct	713 ms	10360 KB	Output is correct
10	Correct	951 ms	10360 KB	Output is correct
11	Correct	1012 ms	10180 KB	Output is correct
12	Correct	790 ms	10416 KB	Output is correct
13	Correct	765 ms	10336 KB	Output is correct
14	Correct	888 ms	10496 KB	Output is correct
15	Correct	962 ms	10460 KB	Output is correct
16	Correct	73 ms	3764 KB	Output is correct
17	Correct	70 ms	3832 KB	Output is correct
18	Correct	64 ms	3832 KB	Output is correct
19	Correct	69 ms	3928 KB	Output is correct
20	Correct	85 ms	3832 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	684 ms	10280 KB	Output is correct
2	Correct	654 ms	10216 KB	Output is correct
3	Correct	627 ms	10232 KB	Output is correct
4	Correct	568 ms	10204 KB	Output is correct
5	Correct	651 ms	10408 KB	Output is correct
6	Correct	628 ms	10488 KB	Output is correct
7	Correct	651 ms	10360 KB	Output is correct
8	Correct	588 ms	10244 KB	Output is correct
9	Correct	713 ms	10360 KB	Output is correct
10	Correct	951 ms	10360 KB	Output is correct
11	Correct	1012 ms	10180 KB	Output is correct
12	Correct	790 ms	10416 KB	Output is correct
13	Correct	765 ms	10336 KB	Output is correct
14	Correct	888 ms	10496 KB	Output is correct
15	Correct	962 ms	10460 KB	Output is correct
16	Correct	73 ms	3764 KB	Output is correct
17	Correct	70 ms	3832 KB	Output is correct
18	Correct	64 ms	3832 KB	Output is correct
19	Correct	69 ms	3928 KB	Output is correct
20	Correct	85 ms	3832 KB	Output is correct
21	Correct	1133 ms	10700 KB	Output is correct
22	Correct	1184 ms	10716 KB	Output is correct
23	Correct	1211 ms	10716 KB	Output is correct
24	Correct	1369 ms	10624 KB	Output is correct
25	Correct	1126 ms	10712 KB	Output is correct
26	Correct	1585 ms	11188 KB	Output is correct
27	Correct	1168 ms	11204 KB	Output is correct
28	Correct	1328 ms	11060 KB	Output is correct
29	Correct	1058 ms	11028 KB	Output is correct
30	Correct	891 ms	10300 KB	Output is correct
31	Correct	734 ms	10552 KB	Output is correct
32	Correct	718 ms	10360 KB	Output is correct
33	Correct	994 ms	10376 KB	Output is correct
34	Correct	890 ms	10292 KB	Output is correct
35	Correct	749 ms	10316 KB	Output is correct
36	Correct	699 ms	10288 KB	Output is correct
37	Correct	655 ms	10168 KB	Output is correct
38	Correct	686 ms	10104 KB	Output is correct

Subtask #3
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	2432 KB	Output is correct
2	Correct	9 ms	2404 KB	Output is correct
3	Correct	11 ms	2304 KB	Output is correct
4	Correct	9 ms	2304 KB	Output is correct
5	Correct	10 ms	2432 KB	Output is correct
6	Correct	10 ms	2432 KB	Output is correct
7	Correct	9 ms	2432 KB	Output is correct
8	Correct	10 ms	2432 KB	Output is correct
9	Correct	10 ms	2432 KB	Output is correct
10	Correct	11 ms	2432 KB	Output is correct
11	Correct	9 ms	2432 KB	Output is correct
12	Correct	9 ms	2304 KB	Output is correct
13	Correct	9 ms	2432 KB	Output is correct
14	Correct	9 ms	2304 KB	Output is correct
15	Correct	10 ms	2432 KB	Output is correct
16	Correct	6 ms	1664 KB	Output is correct
17	Correct	6 ms	1664 KB	Output is correct
18	Correct	7 ms	1664 KB	Output is correct
19	Correct	7 ms	1664 KB	Output is correct
20	Correct	6 ms	1664 KB	Output is correct

Subtask #4
0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	684 ms	10280 KB	Output is correct
2	Correct	654 ms	10216 KB	Output is correct
3	Correct	627 ms	10232 KB	Output is correct
4	Correct	568 ms	10204 KB	Output is correct
5	Correct	651 ms	10408 KB	Output is correct
6	Correct	628 ms	10488 KB	Output is correct
7	Correct	651 ms	10360 KB	Output is correct
8	Correct	588 ms	10244 KB	Output is correct
9	Correct	713 ms	10360 KB	Output is correct
10	Correct	951 ms	10360 KB	Output is correct
11	Correct	1012 ms	10180 KB	Output is correct
12	Correct	790 ms	10416 KB	Output is correct
13	Correct	765 ms	10336 KB	Output is correct
14	Correct	888 ms	10496 KB	Output is correct
15	Correct	962 ms	10460 KB	Output is correct
16	Correct	73 ms	3764 KB	Output is correct
17	Correct	70 ms	3832 KB	Output is correct
18	Correct	64 ms	3832 KB	Output is correct
19	Correct	69 ms	3928 KB	Output is correct
20	Correct	85 ms	3832 KB	Output is correct
21	Correct	1133 ms	10700 KB	Output is correct
22	Correct	1184 ms	10716 KB	Output is correct
23	Correct	1211 ms	10716 KB	Output is correct
24	Correct	1369 ms	10624 KB	Output is correct
25	Correct	1126 ms	10712 KB	Output is correct
26	Correct	1585 ms	11188 KB	Output is correct
27	Correct	1168 ms	11204 KB	Output is correct
28	Correct	1328 ms	11060 KB	Output is correct
29	Correct	1058 ms	11028 KB	Output is correct
30	Correct	891 ms	10300 KB	Output is correct
31	Correct	734 ms	10552 KB	Output is correct
32	Correct	718 ms	10360 KB	Output is correct
33	Correct	994 ms	10376 KB	Output is correct
34	Correct	890 ms	10292 KB	Output is correct
35	Correct	749 ms	10316 KB	Output is correct
36	Correct	699 ms	10288 KB	Output is correct
37	Correct	655 ms	10168 KB	Output is correct
38	Correct	686 ms	10104 KB	Output is correct
39	Correct	9 ms	2432 KB	Output is correct
40	Correct	9 ms	2404 KB	Output is correct
41	Correct	11 ms	2304 KB	Output is correct
42	Correct	9 ms	2304 KB	Output is correct
43	Correct	10 ms	2432 KB	Output is correct
44	Correct	10 ms	2432 KB	Output is correct
45	Correct	9 ms	2432 KB	Output is correct
46	Correct	10 ms	2432 KB	Output is correct
47	Correct	10 ms	2432 KB	Output is correct
48	Correct	11 ms	2432 KB	Output is correct
49	Correct	9 ms	2432 KB	Output is correct
50	Correct	9 ms	2304 KB	Output is correct
51	Correct	9 ms	2432 KB	Output is correct
52	Correct	9 ms	2304 KB	Output is correct
53	Correct	10 ms	2432 KB	Output is correct
54	Correct	6 ms	1664 KB	Output is correct
55	Correct	6 ms	1664 KB	Output is correct
56	Correct	7 ms	1664 KB	Output is correct
57	Correct	7 ms	1664 KB	Output is correct
58	Correct	6 ms	1664 KB	Output is correct
59	Correct	1318 ms	11420 KB	Output is correct
60	Correct	1046 ms	11292 KB	Output is correct
61	Correct	1272 ms	11380 KB	Output is correct
62	Correct	1270 ms	11488 KB	Output is correct
63	Correct	1487 ms	11288 KB	Output is correct
64	Correct	1812 ms	12140 KB	Output is correct
65	Execution timed out	2054 ms	12140 KB	Time limit exceeded
66	Halted	0 ms	0 KB	-

답안 #108412

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 27.0 / 27.0

Subtask #4 0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
27.0 / 27.0

Subtask #4
0 / 42.0