Submission #1093129

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093129		InvMOD	Cloud Computing (CEOI18_clo)	C++14	18 / 100	261 ms	1884 KiB

clo

#include<bits/stdc++.h>

using namespace std;

using ll = long long;

const int N = 2e3+1;
const ll INF = 1e18;

int n, m;
int c[N], C[N], F[N], f[N];
ll V[N], v[N];

namespace Sub4{
    bool ckSub()
    {
        int cnt = 0;
        for(int i = 1; i <= n; i++) cnt += (f[i] == 1);
        for(int i = 1; i <= m; i++) cnt += (F[i] == 1);
        return cnt == (n+m);
    }

    vector<ll> f, g;
    void solve()
    {
        int sum_room = 0;
        for(int i = 1; i <= n; i++){
            sum_room = sum_room + c[i];
        }
        f.assign(sum_room+1, INF);

        sum_room = 0;
        for(int i = 1; i <= m; i++){
            sum_room = sum_room + C[i];
        }
        g.assign(sum_room+1, -INF);

        f[0] = 0;
        for(int i = 1; i <= n; i++){
            for(int j = (int)f.size()-1; j >= c[i]; j--){
                f[j] = min(f[j], f[j-c[i]] + v[i]);
            }
        }

        g[0] = 0;
        for(int i = 1; i <= m; i++){
            for(int j = (int)g.size()-1; j >= C[i]; j--){
                g[j] = max(g[j], g[j-C[i]] + V[i]);
            }
        }

        for(int i = (int)f.size()-2; i >= 0; i--){
            f[i] = min(f[i], f[i+1]);
        }

        ll answer = 0;
        for(int i = 1; i < min((int) f.size(), (int) g.size()); i++){
            answer = max(answer, (g[i] - f[i]));
        }
        cout << answer <<"\n";
        return;
    }
}

void inp()
{
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> c[i] >> f[i] >> v[i];
    }

    cin >> m;
    for(int i = 1; i <= m; i++){
        cin >> C[i] >> F[i] >> V[i];
    }
}

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

    #define name "task"
    if(fopen(name".INP", "r")){
        freopen(name".INP", "r", stdin);
        freopen(name".OUT", "w", stdout);
    }

    inp();
    if(Sub4::ckSub()){
        Sub4::solve();
    }
    return 0;
}

Compilation message (stderr)

clo.cpp: In function 'int main()':
clo.cpp:85:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |         freopen(name".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:86:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |         freopen(name".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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