답안 #108417

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108417	2019-04-29T06:54:42 Z	nxteru	Boat (APIO16_boat)	C++14	100 / 100	762 ms	12492 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[1005][505],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++){
			ll *x=r[j],*y=dp[j],*z=s[j];
			if(j>a[i]){
				y[i]=p;
				ans=(ans+p*z[x[i]]%M)%M;
			}
			for(int k=0;k<i;k++)p=(p+y[k]*z[x[k]-x[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	402 ms	10356 KB	Output is correct
2	Correct	416 ms	10360 KB	Output is correct
3	Correct	423 ms	10216 KB	Output is correct
4	Correct	400 ms	10400 KB	Output is correct
5	Correct	416 ms	10388 KB	Output is correct
6	Correct	520 ms	10312 KB	Output is correct
7	Correct	509 ms	10304 KB	Output is correct
8	Correct	523 ms	10232 KB	Output is correct
9	Correct	582 ms	10368 KB	Output is correct
10	Correct	476 ms	10292 KB	Output is correct
11	Correct	455 ms	10276 KB	Output is correct
12	Correct	484 ms	10232 KB	Output is correct
13	Correct	552 ms	10348 KB	Output is correct
14	Correct	498 ms	10432 KB	Output is correct
15	Correct	456 ms	10520 KB	Output is correct
16	Correct	47 ms	2304 KB	Output is correct
17	Correct	50 ms	2532 KB	Output is correct
18	Correct	47 ms	2424 KB	Output is correct
19	Correct	46 ms	2432 KB	Output is correct
20	Correct	50 ms	2424 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	402 ms	10356 KB	Output is correct
2	Correct	416 ms	10360 KB	Output is correct
3	Correct	423 ms	10216 KB	Output is correct
4	Correct	400 ms	10400 KB	Output is correct
5	Correct	416 ms	10388 KB	Output is correct
6	Correct	520 ms	10312 KB	Output is correct
7	Correct	509 ms	10304 KB	Output is correct
8	Correct	523 ms	10232 KB	Output is correct
9	Correct	582 ms	10368 KB	Output is correct
10	Correct	476 ms	10292 KB	Output is correct
11	Correct	455 ms	10276 KB	Output is correct
12	Correct	484 ms	10232 KB	Output is correct
13	Correct	552 ms	10348 KB	Output is correct
14	Correct	498 ms	10432 KB	Output is correct
15	Correct	456 ms	10520 KB	Output is correct
16	Correct	47 ms	2304 KB	Output is correct
17	Correct	50 ms	2532 KB	Output is correct
18	Correct	47 ms	2424 KB	Output is correct
19	Correct	46 ms	2432 KB	Output is correct
20	Correct	50 ms	2424 KB	Output is correct
21	Correct	562 ms	11444 KB	Output is correct
22	Correct	551 ms	11368 KB	Output is correct
23	Correct	546 ms	11256 KB	Output is correct
24	Correct	520 ms	11128 KB	Output is correct
25	Correct	473 ms	11008 KB	Output is correct
26	Correct	645 ms	10872 KB	Output is correct
27	Correct	679 ms	10976 KB	Output is correct
28	Correct	605 ms	10840 KB	Output is correct
29	Correct	556 ms	10872 KB	Output is correct
30	Correct	491 ms	12104 KB	Output is correct
31	Correct	567 ms	12384 KB	Output is correct
32	Correct	553 ms	12408 KB	Output is correct
33	Correct	583 ms	12300 KB	Output is correct
34	Correct	550 ms	12252 KB	Output is correct
35	Correct	404 ms	12212 KB	Output is correct
36	Correct	389 ms	12156 KB	Output is correct
37	Correct	442 ms	12160 KB	Output is correct
38	Correct	446 ms	12280 KB	Output is correct

Subtask #3
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	2688 KB	Output is correct
2	Correct	8 ms	2688 KB	Output is correct
3	Correct	8 ms	2688 KB	Output is correct
4	Correct	8 ms	2688 KB	Output is correct
5	Correct	8 ms	2688 KB	Output is correct
6	Correct	9 ms	2688 KB	Output is correct
7	Correct	10 ms	2688 KB	Output is correct
8	Correct	9 ms	2688 KB	Output is correct
9	Correct	6 ms	2688 KB	Output is correct
10	Correct	9 ms	2688 KB	Output is correct
11	Correct	8 ms	2688 KB	Output is correct
12	Correct	10 ms	2688 KB	Output is correct
13	Correct	9 ms	2688 KB	Output is correct
14	Correct	9 ms	2688 KB	Output is correct
15	Correct	9 ms	2688 KB	Output is correct
16	Correct	7 ms	1664 KB	Output is correct
17	Correct	6 ms	1664 KB	Output is correct
18	Correct	6 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
42.0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	402 ms	10356 KB	Output is correct
2	Correct	416 ms	10360 KB	Output is correct
3	Correct	423 ms	10216 KB	Output is correct
4	Correct	400 ms	10400 KB	Output is correct
5	Correct	416 ms	10388 KB	Output is correct
6	Correct	520 ms	10312 KB	Output is correct
7	Correct	509 ms	10304 KB	Output is correct
8	Correct	523 ms	10232 KB	Output is correct
9	Correct	582 ms	10368 KB	Output is correct
10	Correct	476 ms	10292 KB	Output is correct
11	Correct	455 ms	10276 KB	Output is correct
12	Correct	484 ms	10232 KB	Output is correct
13	Correct	552 ms	10348 KB	Output is correct
14	Correct	498 ms	10432 KB	Output is correct
15	Correct	456 ms	10520 KB	Output is correct
16	Correct	47 ms	2304 KB	Output is correct
17	Correct	50 ms	2532 KB	Output is correct
18	Correct	47 ms	2424 KB	Output is correct
19	Correct	46 ms	2432 KB	Output is correct
20	Correct	50 ms	2424 KB	Output is correct
21	Correct	562 ms	11444 KB	Output is correct
22	Correct	551 ms	11368 KB	Output is correct
23	Correct	546 ms	11256 KB	Output is correct
24	Correct	520 ms	11128 KB	Output is correct
25	Correct	473 ms	11008 KB	Output is correct
26	Correct	645 ms	10872 KB	Output is correct
27	Correct	679 ms	10976 KB	Output is correct
28	Correct	605 ms	10840 KB	Output is correct
29	Correct	556 ms	10872 KB	Output is correct
30	Correct	491 ms	12104 KB	Output is correct
31	Correct	567 ms	12384 KB	Output is correct
32	Correct	553 ms	12408 KB	Output is correct
33	Correct	583 ms	12300 KB	Output is correct
34	Correct	550 ms	12252 KB	Output is correct
35	Correct	404 ms	12212 KB	Output is correct
36	Correct	389 ms	12156 KB	Output is correct
37	Correct	442 ms	12160 KB	Output is correct
38	Correct	446 ms	12280 KB	Output is correct
39	Correct	8 ms	2688 KB	Output is correct
40	Correct	8 ms	2688 KB	Output is correct
41	Correct	8 ms	2688 KB	Output is correct
42	Correct	8 ms	2688 KB	Output is correct
43	Correct	8 ms	2688 KB	Output is correct
44	Correct	9 ms	2688 KB	Output is correct
45	Correct	10 ms	2688 KB	Output is correct
46	Correct	9 ms	2688 KB	Output is correct
47	Correct	6 ms	2688 KB	Output is correct
48	Correct	9 ms	2688 KB	Output is correct
49	Correct	8 ms	2688 KB	Output is correct
50	Correct	10 ms	2688 KB	Output is correct
51	Correct	9 ms	2688 KB	Output is correct
52	Correct	9 ms	2688 KB	Output is correct
53	Correct	9 ms	2688 KB	Output is correct
54	Correct	7 ms	1664 KB	Output is correct
55	Correct	6 ms	1664 KB	Output is correct
56	Correct	6 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	595 ms	12492 KB	Output is correct
60	Correct	626 ms	12280 KB	Output is correct
61	Correct	589 ms	12152 KB	Output is correct
62	Correct	643 ms	12280 KB	Output is correct
63	Correct	572 ms	12316 KB	Output is correct
64	Correct	762 ms	12280 KB	Output is correct
65	Correct	734 ms	12232 KB	Output is correct
66	Correct	638 ms	12248 KB	Output is correct
67	Correct	735 ms	12280 KB	Output is correct
68	Correct	631 ms	12252 KB	Output is correct
69	Correct	614 ms	12408 KB	Output is correct
70	Correct	655 ms	12160 KB	Output is correct
71	Correct	686 ms	12280 KB	Output is correct
72	Correct	652 ms	12244 KB	Output is correct
73	Correct	689 ms	12260 KB	Output is correct
74	Correct	90 ms	2432 KB	Output is correct
75	Correct	97 ms	2604 KB	Output is correct
76	Correct	106 ms	2592 KB	Output is correct
77	Correct	86 ms	2680 KB	Output is correct
78	Correct	90 ms	2548 KB	Output is correct

답안 #108417

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