제출 #32222

#제출 시각아이디문제언어결과실행 시간메모리
32222dqhungdlBoat (APIO16_boat)C++14
9 / 100
0 ms2020 KiB
#include <bits/stdc++.h>
using namespace std;

const int mod=1e9+7;
int n,res=0,a[505],b[505],f[505];

void Sub1()
{
    for(int i=1;i<=n;i++)
    {
        f[i]=1;
        for(int j=1;j<i;j++)
            if(a[j]<a[i])
                f[i]=(f[i]+f[j])%mod;
        res=(res+f[i])%mod;
    }
    cout<<res;
}

int main()
{
    cin>>n;
    bool check=false;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i]>>b[i];
        if(a[i]!=b[i])
            check=true;
    }
    if(check==false)
        Sub1();
}
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