Submission #824334

#	Time	Username	Problem	Language	Result	Execution time	Memory
824334		hungnt	Cloud Computing (CEOI18_clo)	C++14	100 / 100	650 ms	3588 KiB

clo

#include<bits/stdc++.h>
using namespace std;

class state
{
public:
    int c, f, v;
    bool type;
    state()
    {
        c = f = v = 0;
        type = 0;
    }
    state(int _c, int _f, int _v, bool _type)
    {
        c = _c;
        f = _f;
        v = _v;
        type = _type;
    }
    bool operator < (const state &v) const
    {
        if(f == v.f) return type < v.type;
        return f < v.f;
    }
    bool operator == (const state &v) const
    {
        return f == v.f;
    }
    bool operator > (const state &v) const
    {
        if(f == v.f) return type > v.type;
        return f > v.f;
    }
};

int n, m;
state a[4005];
long long dp[2][4005 * 50];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n;
    int ci, fi, vi;
    for(int i = 1; i <= n; i++)
    {
        cin >> ci >> fi >> vi;
        a[i] = {ci, fi, vi, 1};
    }
    cin >> fi;
    ci = n;
    n += fi;
    for(int i = ci + 1; i <= n; i++)
    {
        cin >> ci >> fi >> vi;
        a[i] = {ci, fi, vi, 0};
    }
    sort(a + 1, a + n + 1);
    for(int i = 1; i <= n; i++)
    {
//        cout << a[i].c << " " << a[i].f << " " << a[i].v << " " << a[i].type << "\n";
    }
    memset(dp, -0x3f, sizeof dp);
    int id = 0;
    dp[0][0] = 0;
    int lim = 0, newc, add;
    for(int i = n; i >= 1; i--)
    {
        id ^= 1;
//        cout << lim << "\n";
        for(int j = 0; j <= lim; j++)
            dp[id][j] = dp[id ^ 1][j];
         for(int j = (!a[i].type ? a[i].c : 0); j <= lim; j++)
        {
            if(!a[i].type)
            {
                newc = j - a[i].c;
                add = a[i].v;
            }
            else
            {
                newc = j + a[i].c;
                add = -a[i].v;
            }
            dp[id][newc] = max(dp[id][newc], dp[id ^ 1][j] + add);
//            cout << n - i << " " << newc << " " << dp[id][newc] << "\n";

        }
        if(a[i].type) lim += a[i].c;
    }
    long long ans = 0;
    for(int i = 0; i <= lim; i++) ans = max(ans, dp[id][i]);
    cout << ans;
}

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