제출 #1182449

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1182449		supercoder2902	Cloud Computing (CEOI18_clo)	C++20	100 / 100	629 ms	2120 KiB

clo

#include <bits/stdc++.h>
#define ll long long
#define task ""
using namespace std;
void fre(){
    if (fopen(task".INP","r")){
        freopen(task".INP","r",stdin);
        freopen(task".OUT","w",stdout);
    }
}
const int N=1e6+5;
const ll INF=1e18+5;
const int MOD=1e9+7;
const int LIM=1e9+5;
struct st{
    int c;
    ll f,v;
};
int n,m,sum;
vector <st> vt;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    fre();
    cin>>n;
    for (int i=1;i<=n;i++){
        int c; ll f,v; cin>>c>>f>>v;
        sum+=c; vt.push_back({c,f,-v});
    }
    cin>>m;
    for (int i=1;i<=m;i++){
        int c,f,v; cin>>c>>f>>v;
        vt.push_back({-c,f,v});
    }
    sort(vt.begin(),vt.end(),[&](const st &x,const st &y){
         return (x.f!=y.f) ? x.f>y.f : x.v<y.v;
         });
    vector <ll> f(sum+1,-INF);
    f[0]=0;
    for (st &x:vt){
        vector <ll> g(f);
        for (int j=0;j<=sum;j++){
            if (x.c<=j&&j-x.c<=sum&&f[j-x.c]>-INF) g[j]=max(g[j],f[j-x.c]+x.v);
        }
        f=g;
    }
    cout<<*max_element(f.begin(),f.end());
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'void fre()':
clo.cpp:7:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |         freopen(task".INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
clo.cpp:8:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |         freopen(task".OUT","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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