Submission #1196596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1196596		al95ireyiz	Detecting Molecules (IOI16_molecules)	C++20	0 / 100	4 ms	8264 KiB

molecules

//*** Bismillah ***//
#pragma GCC optimize("O3")
#pragma GCC optimize("fast-math")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("no-stack-protector")
#include <bits/stdc++.h>
using namespace std;
#if !defined(ONLINE_JUDGE) and !defined(EVAL)
#include "template/debug.h"
#else
#define d(x...)
#endif
#define fr first
#define sc second
#define in insert
#define ll long long
#define pb push_back
#define vll vector<ll>
#define pll pair<ll,ll>
#define vvll vector<vll>
#define vpll vector<pll>
#define len(x)(ll)x.size()
#define all(x)x.begin(),x.end()
const ll INF = 1e9;
const ll INFL = 1e18;
const ll MOD = 1e9+7;
// const ll MOD = 998244353;
const ll maxn = 5e5+5;
ll n,m,k=0;
#include "molecules.h"
vll v;
ll l, r;
bitset<maxn>dp, dpp;
ll pcm[maxn], pr[maxn];
vector<int> find_subset(int _l, int _r, vector<int> _w){
    l = _l, r = _r; v.clear(); v.pb(0); for(auto x : _w) v.pb(x); n = len(v);
    dp.reset();
    memset(pcm, -1, sizeof(pcm)), memset(pr, -1, sizeof(pr));
    dp[0] = 1;
    for(ll i = 1; i <= n; i ++){
        dpp = dp << v[i];
        dpp &= ~dp;
        for(ll j = dpp._Find_first(); j <= r; j = dpp._Find_next(j)){
            pcm[j] = j - v[i];
            pr[j] = i;
        }
        dp |= dpp;
    }
    ll x = l;
    while(x <= r and !dp[x]) x ++;
    if(dp[x] == 0) return {};
    vector<int> cv;
    for(ll i = x; i > 0;){
        cv.pb(pr[i]);
        i = pcm[i];
    }
    return cv;
}
// void _(ll tt){
// }
// signed main(){
//     ll tm=clock();
//     cin.tie(0)->sync_with_stdio(0);
//     ll t=1;
//     // cin>>t;
//     for(ll tt=1;tt<=t;tt++){
//             _(tt);
//     }
//     cerr<<"\n\033[1;31mTime: \033[1;30m" \
//         <<(double)(clock()-tm)/1000000<<"\033[1;32m seconds\n";
// }

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31