Submission #722749

#	Time	Username	Problem	Language	Result	Execution time	Memory
722749		n0sk1ll	Boat (APIO16_boat)	C++14	9 / 100	2 ms	344 KiB

boat

#include <bits/stdc++.h>

#define FAST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);cerr.tie(0)
#define mp make_pair
#define xx first
#define yy second
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define all(x) x.begin(),x.end()
#define ff(i,a,b) for (int i = a; i < b; i++)
#define fff(i,a,b) for (int i = a; i <= b; i++)
#define bff(i,a,b) for (int i = b-1; i >= a; i--)
#define bfff(i,a,b) for (int i = b; i >= a; i--)

using namespace std;
long double typedef ld;
unsigned int typedef ui;
long long int typedef li;
pair<int,int> typedef pii;
pair<li,li> typedef pli;
pair<ld,ld> typedef pld;
vector<vector<int>> typedef graph;
unsigned long long int typedef ull;
//const int mod = 998244353;
const int mod = 1000000007;







//Note to self: Check for overflow

int a[503],b[503];
int dp[503];

int solve3v(int n)
{
    dp[0]=1;
    fff(i,1,n) fff(j,0,i-1) if (a[i]>a[j]) (dp[i]+=dp[j])%=mod;

    int ans=0;
    fff(i,1,n) (ans+=dp[i])%=mod;
    return ans;
}

int main()
{
    FAST;

    int n; cin>>n;
    fff(i,1,n) cin>>a[i]>>b[i];
    cout<<solve3v(n)<<"\n";
}

//Note to self: Check for overflow

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