답안 #553692

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
553692	2022-04-26T15:52:36 Z	ala2	Boat (APIO16_boat)	C++14	9 / 100	6 ms	2316 KB

boat

#include <bits/stdc++.h>
#define int long long
#define F first
#define S second
#define pb push_back
#define B begin()
#define E end()

using namespace std;
int n;
int a[1001000];
int dp[505][505];
const int mod=1e9+7;
int f(int i,int last)
{
    if(dp[i][last]!=-1)
        return dp[i][last]%mod;
    if(i==n+1)
        return 1;
    int g=f(i+1,last);
    if(a[i]>a[last])
        g+=f(i+1,i);
    return dp[i][last]=g%mod;
}
signed main()
{
    memset(dp,-1,sizeof dp);
    cin>>n;
    for(int i=1;i<=n;i++){
        //a[i]=n-i;
        cin>>a[i]>>a[i];
    }
        cout<<f(1,0)-1<<endl;

}

Subtask #1

9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2260 KB	Output is correct
2	Correct	4 ms	2316 KB	Output is correct
3	Correct	4 ms	2312 KB	Output is correct
4	Correct	3 ms	2308 KB	Output is correct
5	Correct	3 ms	2260 KB	Output is correct
6	Correct	3 ms	2260 KB	Output is correct
7	Correct	3 ms	2308 KB	Output is correct
8	Correct	3 ms	2312 KB	Output is correct
9	Correct	4 ms	2304 KB	Output is correct
10	Correct	4 ms	2260 KB	Output is correct
11	Correct	4 ms	2260 KB	Output is correct
12	Correct	4 ms	2220 KB	Output is correct
13	Correct	4 ms	2260 KB	Output is correct
14	Correct	6 ms	2260 KB	Output is correct
15	Correct	3 ms	2260 KB	Output is correct
16	Correct	3 ms	2260 KB	Output is correct
17	Correct	3 ms	2308 KB	Output is correct
18	Correct	3 ms	2316 KB	Output is correct
19	Correct	3 ms	2312 KB	Output is correct
20	Correct	4 ms	2260 KB	Output is correct

Subtask #2

0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2260 KB	Output is correct
2	Correct	4 ms	2316 KB	Output is correct
3	Correct	4 ms	2312 KB	Output is correct
4	Correct	3 ms	2308 KB	Output is correct
5	Correct	3 ms	2260 KB	Output is correct
6	Correct	3 ms	2260 KB	Output is correct
7	Correct	3 ms	2308 KB	Output is correct
8	Correct	3 ms	2312 KB	Output is correct
9	Correct	4 ms	2304 KB	Output is correct
10	Correct	4 ms	2260 KB	Output is correct
11	Correct	4 ms	2260 KB	Output is correct
12	Correct	4 ms	2220 KB	Output is correct
13	Correct	4 ms	2260 KB	Output is correct
14	Correct	6 ms	2260 KB	Output is correct
15	Correct	3 ms	2260 KB	Output is correct
16	Correct	3 ms	2260 KB	Output is correct
17	Correct	3 ms	2308 KB	Output is correct
18	Correct	3 ms	2316 KB	Output is correct
19	Correct	3 ms	2312 KB	Output is correct
20	Correct	4 ms	2260 KB	Output is correct
21	Incorrect	3 ms	2260 KB	Output isn't correct
22	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	2 ms	2260 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4

0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2260 KB	Output is correct
2	Correct	4 ms	2316 KB	Output is correct
3	Correct	4 ms	2312 KB	Output is correct
4	Correct	3 ms	2308 KB	Output is correct
5	Correct	3 ms	2260 KB	Output is correct
6	Correct	3 ms	2260 KB	Output is correct
7	Correct	3 ms	2308 KB	Output is correct
8	Correct	3 ms	2312 KB	Output is correct
9	Correct	4 ms	2304 KB	Output is correct
10	Correct	4 ms	2260 KB	Output is correct
11	Correct	4 ms	2260 KB	Output is correct
12	Correct	4 ms	2220 KB	Output is correct
13	Correct	4 ms	2260 KB	Output is correct
14	Correct	6 ms	2260 KB	Output is correct
15	Correct	3 ms	2260 KB	Output is correct
16	Correct	3 ms	2260 KB	Output is correct
17	Correct	3 ms	2308 KB	Output is correct
18	Correct	3 ms	2316 KB	Output is correct
19	Correct	3 ms	2312 KB	Output is correct
20	Correct	4 ms	2260 KB	Output is correct
21	Incorrect	3 ms	2260 KB	Output isn't correct
22	Halted	0 ms	0 KB	-