Submission #95329

#	Time	Username	Problem	Language	Result	Execution time	Memory
95329		LittleFlowers__	Boat (APIO16_boat)	C++14	9 / 100	4 ms	1436 KiB

boat

#include <bits/stdc++.h>
using namespace std;
const int N=510;
const int M=1000000007;
int n,kq;
int a[N],b[N];
int f[N][N];
int main()
{
    ios_base::sync_with_stdio(false),cin.tie(nullptr);
    cin>>n;
    f[0][0]=1;
    for(int i=1;i<=n;++i) cin>>a[i]>>b[i];
    for(int i=1;i<=n;++i) for(int j=0;j<i;++j)
    {
        if(a[j]<a[i]) f[i][i]=(f[i][i]+f[i-1][j])%M;
        f[i][j]=(f[i][j]+f[i-1][j])%M;
    }
    for(int i=0;i<=n;++i) kq=(kq+f[n][i])%M;
    cout<<(kq-1+M)%M;
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42