답안 #108406

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108406	2019-04-29T06:39:54 Z	nxteru	Boat (APIO16_boat)	C++14	58 / 100	2000 ms	12360 KB

boat

#include <bits/stdc++.h>
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];
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:25:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=1;j<cm.size();j++){
               ~^~~~~~~~~~
boat.cpp:30:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<cm.size();i++){
              ~^~~~~~~~~~
boat.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
boat.cpp:13:8: 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	777 ms	10332 KB	Output is correct
2	Correct	612 ms	10256 KB	Output is correct
3	Correct	575 ms	10120 KB	Output is correct
4	Correct	590 ms	10204 KB	Output is correct
5	Correct	604 ms	10300 KB	Output is correct
6	Correct	1091 ms	10432 KB	Output is correct
7	Correct	1244 ms	10336 KB	Output is correct
8	Correct	1091 ms	10252 KB	Output is correct
9	Correct	1073 ms	10360 KB	Output is correct
10	Correct	1020 ms	10468 KB	Output is correct
11	Correct	1054 ms	10336 KB	Output is correct
12	Correct	874 ms	10300 KB	Output is correct
13	Correct	1134 ms	10448 KB	Output is correct
14	Correct	1043 ms	10348 KB	Output is correct
15	Correct	1087 ms	10456 KB	Output is correct
16	Correct	70 ms	3832 KB	Output is correct
17	Correct	75 ms	3980 KB	Output is correct
18	Correct	86 ms	3836 KB	Output is correct
19	Correct	104 ms	3992 KB	Output is correct
20	Correct	69 ms	3832 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	777 ms	10332 KB	Output is correct
2	Correct	612 ms	10256 KB	Output is correct
3	Correct	575 ms	10120 KB	Output is correct
4	Correct	590 ms	10204 KB	Output is correct
5	Correct	604 ms	10300 KB	Output is correct
6	Correct	1091 ms	10432 KB	Output is correct
7	Correct	1244 ms	10336 KB	Output is correct
8	Correct	1091 ms	10252 KB	Output is correct
9	Correct	1073 ms	10360 KB	Output is correct
10	Correct	1020 ms	10468 KB	Output is correct
11	Correct	1054 ms	10336 KB	Output is correct
12	Correct	874 ms	10300 KB	Output is correct
13	Correct	1134 ms	10448 KB	Output is correct
14	Correct	1043 ms	10348 KB	Output is correct
15	Correct	1087 ms	10456 KB	Output is correct
16	Correct	70 ms	3832 KB	Output is correct
17	Correct	75 ms	3980 KB	Output is correct
18	Correct	86 ms	3836 KB	Output is correct
19	Correct	104 ms	3992 KB	Output is correct
20	Correct	69 ms	3832 KB	Output is correct
21	Correct	1203 ms	10684 KB	Output is correct
22	Correct	1149 ms	10844 KB	Output is correct
23	Correct	1093 ms	10640 KB	Output is correct
24	Correct	1035 ms	10608 KB	Output is correct
25	Correct	846 ms	10744 KB	Output is correct
26	Correct	1467 ms	11036 KB	Output is correct
27	Correct	1535 ms	11292 KB	Output is correct
28	Correct	1200 ms	11108 KB	Output is correct
29	Correct	1547 ms	11208 KB	Output is correct
30	Correct	663 ms	10392 KB	Output is correct
31	Correct	668 ms	10360 KB	Output is correct
32	Correct	1010 ms	10488 KB	Output is correct
33	Correct	1008 ms	10488 KB	Output is correct
34	Correct	1077 ms	10252 KB	Output is correct
35	Correct	760 ms	10224 KB	Output is correct
36	Correct	708 ms	10312 KB	Output is correct
37	Correct	599 ms	10360 KB	Output is correct
38	Correct	764 ms	10104 KB	Output is correct

Subtask #3
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	2432 KB	Output is correct
2	Correct	8 ms	2428 KB	Output is correct
3	Correct	8 ms	2432 KB	Output is correct
4	Correct	9 ms	2432 KB	Output is correct
5	Correct	8 ms	2304 KB	Output is correct
6	Correct	10 ms	2432 KB	Output is correct
7	Correct	10 ms	2380 KB	Output is correct
8	Correct	15 ms	2432 KB	Output is correct
9	Correct	10 ms	2432 KB	Output is correct
10	Correct	12 ms	2560 KB	Output is correct
11	Correct	11 ms	2432 KB	Output is correct
12	Correct	11 ms	2304 KB	Output is correct
13	Correct	10 ms	2432 KB	Output is correct
14	Correct	8 ms	2432 KB	Output is correct
15	Correct	10 ms	2560 KB	Output is correct
16	Correct	6 ms	1792 KB	Output is correct
17	Correct	7 ms	1664 KB	Output is correct
18	Correct	6 ms	1664 KB	Output is correct
19	Correct	6 ms	1692 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	777 ms	10332 KB	Output is correct
2	Correct	612 ms	10256 KB	Output is correct
3	Correct	575 ms	10120 KB	Output is correct
4	Correct	590 ms	10204 KB	Output is correct
5	Correct	604 ms	10300 KB	Output is correct
6	Correct	1091 ms	10432 KB	Output is correct
7	Correct	1244 ms	10336 KB	Output is correct
8	Correct	1091 ms	10252 KB	Output is correct
9	Correct	1073 ms	10360 KB	Output is correct
10	Correct	1020 ms	10468 KB	Output is correct
11	Correct	1054 ms	10336 KB	Output is correct
12	Correct	874 ms	10300 KB	Output is correct
13	Correct	1134 ms	10448 KB	Output is correct
14	Correct	1043 ms	10348 KB	Output is correct
15	Correct	1087 ms	10456 KB	Output is correct
16	Correct	70 ms	3832 KB	Output is correct
17	Correct	75 ms	3980 KB	Output is correct
18	Correct	86 ms	3836 KB	Output is correct
19	Correct	104 ms	3992 KB	Output is correct
20	Correct	69 ms	3832 KB	Output is correct
21	Correct	1203 ms	10684 KB	Output is correct
22	Correct	1149 ms	10844 KB	Output is correct
23	Correct	1093 ms	10640 KB	Output is correct
24	Correct	1035 ms	10608 KB	Output is correct
25	Correct	846 ms	10744 KB	Output is correct
26	Correct	1467 ms	11036 KB	Output is correct
27	Correct	1535 ms	11292 KB	Output is correct
28	Correct	1200 ms	11108 KB	Output is correct
29	Correct	1547 ms	11208 KB	Output is correct
30	Correct	663 ms	10392 KB	Output is correct
31	Correct	668 ms	10360 KB	Output is correct
32	Correct	1010 ms	10488 KB	Output is correct
33	Correct	1008 ms	10488 KB	Output is correct
34	Correct	1077 ms	10252 KB	Output is correct
35	Correct	760 ms	10224 KB	Output is correct
36	Correct	708 ms	10312 KB	Output is correct
37	Correct	599 ms	10360 KB	Output is correct
38	Correct	764 ms	10104 KB	Output is correct
39	Correct	8 ms	2432 KB	Output is correct
40	Correct	8 ms	2428 KB	Output is correct
41	Correct	8 ms	2432 KB	Output is correct
42	Correct	9 ms	2432 KB	Output is correct
43	Correct	8 ms	2304 KB	Output is correct
44	Correct	10 ms	2432 KB	Output is correct
45	Correct	10 ms	2380 KB	Output is correct
46	Correct	15 ms	2432 KB	Output is correct
47	Correct	10 ms	2432 KB	Output is correct
48	Correct	12 ms	2560 KB	Output is correct
49	Correct	11 ms	2432 KB	Output is correct
50	Correct	11 ms	2304 KB	Output is correct
51	Correct	10 ms	2432 KB	Output is correct
52	Correct	8 ms	2432 KB	Output is correct
53	Correct	10 ms	2560 KB	Output is correct
54	Correct	6 ms	1792 KB	Output is correct
55	Correct	7 ms	1664 KB	Output is correct
56	Correct	6 ms	1664 KB	Output is correct
57	Correct	6 ms	1692 KB	Output is correct
58	Correct	5 ms	1664 KB	Output is correct
59	Correct	1343 ms	11456 KB	Output is correct
60	Correct	1310 ms	11252 KB	Output is correct
61	Correct	1162 ms	11280 KB	Output is correct
62	Correct	1416 ms	11528 KB	Output is correct
63	Correct	1107 ms	11512 KB	Output is correct
64	Correct	1759 ms	12356 KB	Output is correct
65	Execution timed out	2062 ms	12360 KB	Time limit exceeded
66	Halted	0 ms	0 KB	-

답안 #108406

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