Submission #1148493

#	Time	Username	Problem	Language	Result	Execution time	Memory
1148493		hynmj	Bouquet (EGOI24_bouquet)	C++20	0 / 100	14 ms	4936 KiB

Main

//~~~~~~~~~~~~~MJ®™~~~~~~~~~~~~~
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#define rep1(n) for(ll i=0; i<(ll)(n); ++i)
#define rep2(i,n) for(ll i=0; i<(ll)(n); ++i)
#define rep3(i,a,b) for(ll i=(ll)(a); i<(ll)(b); ++i)
#define rep4(i,a,b,c) for(ll i=(ll)(a); i<(ll)(b); i+=(c))
#define cut4(a,b,c,d,e,...) e
#define rep(...) cut4(__VA_ARGS__,rep4,rep3,rep2,rep1)(__VA_ARGS__)
#define per1(n) for(ll i=((ll)n)-1; i>=0; --i)
#define per2(i,n) for(ll i=((ll)n)-1; i>=0; --i)
#define per3(i,a,b) for(ll i=((ll)a)-1; i>=(ll)(b); --i)
#define per4(i,a,b,c) for(ll i=((ll)a)-1; i>=(ll)(b); i-=(c))
#define per(...) cut4(__VA_ARGS__,per4,per3,per2,per1)(__VA_ARGS__)
#define ll long long
#define ln cout<<endl
#define int long long
#define Code ios_base::sync_with_stdio(0);
#define by cin.tie(NULL);
#define Hayan cout.tie(NULL);
#define append push_back
#define all(x) (x).begin(),(x).end()
#define allr(x) (x).rbegin(),(x).rend()
#define vi vector<int>
#define ret(x) {cout<<x;return;}
#define ui map<int,int>
#define pi pair<int,int>
#define ff first
#define ss second
using namespace std;
template <typename T> using v = vector<T>;
const int INF = 1e18, MOD = 1e9+7, N = 2e5+7;
int dp[N] = {0}; 
void solve()
{
    int n, k, e, m, ans = 0;
    cin >> n;
    vector<pi> a(n);
    rep(n)
    {
        cin >> a[i].first >> a[i].second;
    }
    // sort(all(a));
    
    rep(n) 
    {
        if (i - a[i].first <= 0)
        {
            if (i + a[i].second < N) 
                dp[i + a[i].second] = max(1ll, dp[i+a[i].second]); 
        }
        else
        {
            if (i + a[i].second < N && i - a[i].first < N) 
                dp[i + a[i].second] = max(dp[i + a[i].second], dp[i - a[i].first] + 1); 
        }
    }   
    rep(n + n) 
    {
        if (i < N)
            ans = max(ans, dp[i]);
    }

    cout << ans;
}
signed main(){
    Code by Hayan
    int ans=1;
    //cout<<setprecision(1000);
    // cin>>ans;
    rep(ans){
        // cout << "Case #" << i+1 << ": ";
        solve();ln;}}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 16
• Subtask 3: 0 / 28
• Subtask 4: 0 / 18
• Subtask 5: 0 / 30