Submission #317431

#	Time	Username	Problem	Language	Result	Execution time	Memory
317431		Hehehe	Cloud Computing (CEOI18_clo)	C++14	100 / 100	466 ms	1400 KiB

clo

#include<bits/stdc++.h> //:3
using namespace std;
typedef long long LL;
#define all(a) (a).begin(), (a).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define pi pair<int, int>
#define sz(x) (int)((x).size())
#define int long long

const int dx[] = {0, 1, 0, -1};
const int dy[] = {1, 0, -1, 0};

const LL inf = 2e6;
const LL mod = 1e9 + 7;
const int N = 2e6 + 11;
const LL INF64 = 3e18 + 1;
const double eps = 1e-14;
const double PI = acos(-1);

LL n, m, dp[N];

struct yes{
    int c, f, cost, tip;
};

yes a[N];

void solve(){

    cin >> n;

    int sum = 0;
    for(int i = 1; i <= n; i++){
        cin >> a[i].c >> a[i].f >> a[i].cost;
        a[i].tip = 0;
        sum += a[i].c;
    }

    cin >> m;
    for(int i = n + 1; i <= n + m; i++){
        cin >> a[i].c >> a[i].f >> a[i].cost;
        a[i].tip = 1;
    }

    n += m;

    for(int i = 1; i <= sum; i++){
        dp[i] = -INF64;
    }

    sort(a + 1, a + n + 1, [](yes l, yes r){
         if(l.f == r.f)return (l.tip < r.tip);
         return (l.f > r.f);
    });

    for(int i = 1; i <= n; i++){
        int c = a[i].c, cost = a[i].cost, tip = a[i].tip;
        if(!tip){
            for(int j = sum - c; j >= 0; j--){
                if(dp[j] != -INF64)dp[j + c] = max(dp[j + c], dp[j] - cost);
            }
        }else{
            for(int j = 0; j <= sum - c; j++){
                if(dp[j + c] != -INF64)dp[j] = max(dp[j], dp[j + c] + cost);
            }
        }

    }

    int ans = 0;
    for(int i = 0; i <= sum; i++)ans = max(ans, dp[i]);
    cout << ans << '\n';
}

int32_t main(){
ios_base :: sync_with_stdio(0); cin.tie(0); cout.tie(0);

    //cout << setprecision(6) << fixed;

    int T = 1;
    //cin >> T;
    while(T--){
        solve();
    }
}

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