답안 #108407

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108407	2019-04-29T06:43:42 Z	nxteru	Boat (APIO16_boat)	C++14	58 / 100	2000 ms	12288 KB

boat

#include <bits/stdc++.h>
#pragma GCC target ("avx2")
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:26:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=1;j<cm.size();j++){
               ~^~~~~~~~~~
boat.cpp:31:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<cm.size();i++){
              ~^~~~~~~~~~
boat.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
boat.cpp:14:8: 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	539 ms	10108 KB	Output is correct
2	Correct	712 ms	10232 KB	Output is correct
3	Correct	642 ms	10172 KB	Output is correct
4	Correct	584 ms	10320 KB	Output is correct
5	Correct	618 ms	10424 KB	Output is correct
6	Correct	839 ms	10204 KB	Output is correct
7	Correct	781 ms	10364 KB	Output is correct
8	Correct	829 ms	10344 KB	Output is correct
9	Correct	737 ms	10408 KB	Output is correct
10	Correct	988 ms	10400 KB	Output is correct
11	Correct	1000 ms	10364 KB	Output is correct
12	Correct	949 ms	10312 KB	Output is correct
13	Correct	1057 ms	10360 KB	Output is correct
14	Correct	1073 ms	10452 KB	Output is correct
15	Correct	1022 ms	10244 KB	Output is correct
16	Correct	66 ms	3704 KB	Output is correct
17	Correct	81 ms	3824 KB	Output is correct
18	Correct	74 ms	3832 KB	Output is correct
19	Correct	67 ms	3832 KB	Output is correct
20	Correct	68 ms	3832 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	539 ms	10108 KB	Output is correct
2	Correct	712 ms	10232 KB	Output is correct
3	Correct	642 ms	10172 KB	Output is correct
4	Correct	584 ms	10320 KB	Output is correct
5	Correct	618 ms	10424 KB	Output is correct
6	Correct	839 ms	10204 KB	Output is correct
7	Correct	781 ms	10364 KB	Output is correct
8	Correct	829 ms	10344 KB	Output is correct
9	Correct	737 ms	10408 KB	Output is correct
10	Correct	988 ms	10400 KB	Output is correct
11	Correct	1000 ms	10364 KB	Output is correct
12	Correct	949 ms	10312 KB	Output is correct
13	Correct	1057 ms	10360 KB	Output is correct
14	Correct	1073 ms	10452 KB	Output is correct
15	Correct	1022 ms	10244 KB	Output is correct
16	Correct	66 ms	3704 KB	Output is correct
17	Correct	81 ms	3824 KB	Output is correct
18	Correct	74 ms	3832 KB	Output is correct
19	Correct	67 ms	3832 KB	Output is correct
20	Correct	68 ms	3832 KB	Output is correct
21	Correct	941 ms	10624 KB	Output is correct
22	Correct	932 ms	10744 KB	Output is correct
23	Correct	880 ms	10616 KB	Output is correct
24	Correct	1135 ms	10588 KB	Output is correct
25	Correct	1059 ms	10576 KB	Output is correct
26	Correct	1695 ms	11176 KB	Output is correct
27	Correct	1821 ms	11288 KB	Output is correct
28	Correct	1708 ms	11112 KB	Output is correct
29	Correct	1558 ms	11040 KB	Output is correct
30	Correct	981 ms	10324 KB	Output is correct
31	Correct	965 ms	10360 KB	Output is correct
32	Correct	847 ms	10360 KB	Output is correct
33	Correct	1068 ms	10360 KB	Output is correct
34	Correct	943 ms	10360 KB	Output is correct
35	Correct	660 ms	10360 KB	Output is correct
36	Correct	616 ms	10432 KB	Output is correct
37	Correct	542 ms	10360 KB	Output is correct
38	Correct	596 ms	10212 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	10 ms	2304 KB	Output is correct
3	Correct	8 ms	2304 KB	Output is correct
4	Correct	8 ms	2304 KB	Output is correct
5	Correct	8 ms	2304 KB	Output is correct
6	Correct	9 ms	2432 KB	Output is correct
7	Correct	9 ms	2432 KB	Output is correct
8	Correct	9 ms	2432 KB	Output is correct
9	Correct	9 ms	2432 KB	Output is correct
10	Correct	9 ms	2432 KB	Output is correct
11	Correct	11 ms	2432 KB	Output is correct
12	Correct	10 ms	2432 KB	Output is correct
13	Correct	9 ms	2432 KB	Output is correct
14	Correct	8 ms	2432 KB	Output is correct
15	Correct	8 ms	2432 KB	Output is correct
16	Correct	5 ms	1792 KB	Output is correct
17	Correct	5 ms	1664 KB	Output is correct
18	Correct	6 ms	1664 KB	Output is correct
19	Correct	11 ms	1664 KB	Output is correct
20	Correct	5 ms	1664 KB	Output is correct

Subtask #4
0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	539 ms	10108 KB	Output is correct
2	Correct	712 ms	10232 KB	Output is correct
3	Correct	642 ms	10172 KB	Output is correct
4	Correct	584 ms	10320 KB	Output is correct
5	Correct	618 ms	10424 KB	Output is correct
6	Correct	839 ms	10204 KB	Output is correct
7	Correct	781 ms	10364 KB	Output is correct
8	Correct	829 ms	10344 KB	Output is correct
9	Correct	737 ms	10408 KB	Output is correct
10	Correct	988 ms	10400 KB	Output is correct
11	Correct	1000 ms	10364 KB	Output is correct
12	Correct	949 ms	10312 KB	Output is correct
13	Correct	1057 ms	10360 KB	Output is correct
14	Correct	1073 ms	10452 KB	Output is correct
15	Correct	1022 ms	10244 KB	Output is correct
16	Correct	66 ms	3704 KB	Output is correct
17	Correct	81 ms	3824 KB	Output is correct
18	Correct	74 ms	3832 KB	Output is correct
19	Correct	67 ms	3832 KB	Output is correct
20	Correct	68 ms	3832 KB	Output is correct
21	Correct	941 ms	10624 KB	Output is correct
22	Correct	932 ms	10744 KB	Output is correct
23	Correct	880 ms	10616 KB	Output is correct
24	Correct	1135 ms	10588 KB	Output is correct
25	Correct	1059 ms	10576 KB	Output is correct
26	Correct	1695 ms	11176 KB	Output is correct
27	Correct	1821 ms	11288 KB	Output is correct
28	Correct	1708 ms	11112 KB	Output is correct
29	Correct	1558 ms	11040 KB	Output is correct
30	Correct	981 ms	10324 KB	Output is correct
31	Correct	965 ms	10360 KB	Output is correct
32	Correct	847 ms	10360 KB	Output is correct
33	Correct	1068 ms	10360 KB	Output is correct
34	Correct	943 ms	10360 KB	Output is correct
35	Correct	660 ms	10360 KB	Output is correct
36	Correct	616 ms	10432 KB	Output is correct
37	Correct	542 ms	10360 KB	Output is correct
38	Correct	596 ms	10212 KB	Output is correct
39	Correct	9 ms	2432 KB	Output is correct
40	Correct	10 ms	2304 KB	Output is correct
41	Correct	8 ms	2304 KB	Output is correct
42	Correct	8 ms	2304 KB	Output is correct
43	Correct	8 ms	2304 KB	Output is correct
44	Correct	9 ms	2432 KB	Output is correct
45	Correct	9 ms	2432 KB	Output is correct
46	Correct	9 ms	2432 KB	Output is correct
47	Correct	9 ms	2432 KB	Output is correct
48	Correct	9 ms	2432 KB	Output is correct
49	Correct	11 ms	2432 KB	Output is correct
50	Correct	10 ms	2432 KB	Output is correct
51	Correct	9 ms	2432 KB	Output is correct
52	Correct	8 ms	2432 KB	Output is correct
53	Correct	8 ms	2432 KB	Output is correct
54	Correct	5 ms	1792 KB	Output is correct
55	Correct	5 ms	1664 KB	Output is correct
56	Correct	6 ms	1664 KB	Output is correct
57	Correct	11 ms	1664 KB	Output is correct
58	Correct	5 ms	1664 KB	Output is correct
59	Correct	1083 ms	11612 KB	Output is correct
60	Correct	1016 ms	11424 KB	Output is correct
61	Correct	1016 ms	11384 KB	Output is correct
62	Correct	1266 ms	11400 KB	Output is correct
63	Correct	1084 ms	11480 KB	Output is correct
64	Correct	1894 ms	12252 KB	Output is correct
65	Correct	1506 ms	12256 KB	Output is correct
66	Correct	1942 ms	12288 KB	Output is correct
67	Execution timed out	2025 ms	12152 KB	Time limit exceeded
68	Halted	0 ms	0 KB	-

답안 #108407

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