Submission #853478

#	Time	Username	Problem	Language	Result	Execution time	Memory
853478		MarwenElarbi	Cloud Computing (CEOI18_clo)	C++17	54 / 100	12 ms	23316 KiB

clo

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define vi vector<int>
#define ve vector
#define ll long long
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define onbit __builtin_popcount
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e18
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
using namespace std;
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const ll MOD = 1e9+7;
const int nax = 4e3+5;
const int MAX_VAL = 1e6+1;
double PI=3.14159265359;
int arx[8]={1,1,0,-1,-1,-1, 0, 1};
int ary[8]={0,1,1, 1, 0,-1,-1,-1};
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    //freopen((s + ".out").c_str(), "w", stdout);
}
ll dp[nax][751];
int main(){
    optimise;
    /*#ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif*/
    //setIO("Dull"); 
    int n;
    cin>>n;
    vector<pair<ll,ii>> tab(4000);
    for (int i = 0; i < n; ++i)
    {
        cin>>tab[i].se.se>>tab[i].fi>>tab[i].se.fi;
    }
    int m;
    cin>>m;
    //return 0;
    for (int i = 0; i < n+m; ++i)
    {
        for (int j = 0; j < 751; ++j)
        {
            dp[i][j]=-1e18;
        }
    }
    for (int i = 0; i < m; ++i)
    {
        cin>>tab[i+n].se.se>>tab[i+n].fi>>tab[i+n].se.fi;
        tab[i+n].se.fi=-tab[i+n].se.fi;
    }
    tab.resize(n+m);
    sort(tab.begin(),tab.end(),greater<>());
    for (int i = 0; i < n+m; ++i)
    {
        tab[i].se.fi=-tab[i].se.fi;
        //cout<<tab[i].fi<<" "<<tab[i].se.fi<<" "<<tab[i].se.se<<endl;
    }
    dp[0][0]=0;
    if (tab[0].se.fi<0) dp[0][tab[0].se.se]=tab[0].se.fi;
    ll mx=0;
    for (int i = 0; i < n+m; ++i)
    {
        for (int j = 0; j < 751; ++j)
        {
            if(i<n+m-1){
                if (dp[i][j]!=-1e18){
                if (tab[i+1].se.fi<0){
                    dp[i+1][j+tab[i+1].se.se]=max(dp[i+1][j+tab[i+1].se.se],dp[i][j]+tab[i+1].se.fi);
                    dp[i+1][j]=max(dp[i+1][j],dp[i][j]);
                }else{
                    dp[i+1][j]=max(dp[i+1][j],dp[i][j]);
                    if (tab[i+1].se.se>j) continue;
                    dp[i+1][j-tab[i+1].se.se]=max(dp[i+1][j-tab[i+1].se.se],dp[i][j]+tab[i+1].se.fi);
                    }
                }
            }
            //if(dp[i][j] != -1e18) cout <<i<<" "<<j<<" "<<dp[i][j]<<endl;
            mx=max(mx,dp[i][j]);
        }
    }cout <<mx<<endl;
}

Compilation message (stderr)

clo.cpp: In function 'void setIO(std::string)':
clo.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 0 / 18
• Subtask 5: 0 / 18
• Subtask 6: 0 / 10