Submission #1093295

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093295		InvMOD	Cloud Computing (CEOI18_clo)	C++14	0 / 100	1 ms	600 KiB

clo

#include<bits/stdc++.h>
 
using namespace std;
 
using ll = long long;
 
template<typename T> bool ckmx(T& a, const T b){if(a < b) return a = b, true; return false;}
template<typename T> bool ckmn(T& a, const T b){if(a > b) return a = b, true; return false;}
 
const int N = 2e3+5;
 
int n, m, f[N];
int F[N], c[N], C[N];
ll v[N], V[N];
 
 
 
namespace Sub4{
    bool ckSub()
    {
        int cnt_num = 0;
        for(int i = 1; i <= max(n,m); i++){
            cnt_num += (f[i] == 1);
            cnt_num += (F[i] == 1);
        }
        return cnt_num == n+m;
    }
 
    const ll INF = 1e18;
    vector<ll> f, g;
 
    void solve()
    {
        int sumRoom = 0;
        for(int i = 1; i <= n; i++){
            sumRoom += c[i];
        }
        f.assign(sumRoom+1, INF);
        sumRoom = 0;
        for(int i = 1; i <= m; i++){
            sumRoom += C[i];
        }
        g.assign(sumRoom+1, -INF);
        f[0] = g[0] = 0;
 
        for(int i = 1; i <= n; i++){
            for(int j = (int)f.size()-1; j >= c[i]; j--){
                ckmn(f[j], f[j - c[i]] + v[i]);
            }
        }
        for(int i = 1; i <= m; i++){
            for(int j = (int)g.size()-1; j >= C[i]; j--){
                ckmx(g[j], g[j - C[i]] + V[i]);
            }
        }
        //for(int j = (int)f.size()-2; j >= 0; j--) f[j] = min(f[j], f[j+1]);
 
        ll answer = 0;
        for(int i = 1; i <= min((int)f.size(), (int)g.size())-1; i++){
            answer = max(answer, g[i] - f[i]);
        }
        cout << answer <<"\n";
    }
}
 
void process()
{
    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];
    }
 
    if(Sub4::ckSub()){
        Sub4::solve();
    }
}
 
int32_t main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
 
    #define name "InvMOD"
    if(fopen(name".INP", "r")){
        freopen(name".INP", "r", stdin);
        freopen(name".OUT", "w", stdout);
    }
 
    process();
    return 0;
}

Compilation message (stderr)

clo.cpp: In function 'int32_t main()':
clo.cpp:89:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |         freopen(name".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:90:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |         freopen(name".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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