Submission #977306

#	Time	Username	Problem	Language	Result	Execution time	Memory
977306		PieArmy	Cloud Computing (CEOI18_clo)	C++17	18 / 100	103 ms	2140 KiB

clo

typedef long long ll;
ll pie(ll army){return (1ll<<army);}
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pb push_back
#define endl '\n'
#define mid ((left+right)>>1)
const ll inf=2000000000000000005;
const int sonsuz=2000000005;
using namespace std;
ll fpow(ll x,ll y,ll m=0){if(y<0){cout<<"powError";return -1;}if(m)x%=m;ll res=1;while(y>0){if(y&1)res*=x;x*=x;if(m){x%=m;res%=m;}y>>=1;}return res;}

int n,m;

void code(){
	cin>>n;
    int c[n],f[n],v[n],C[n],F[n],V[n];
    for(int i=0;i<n;i++){
        cin>>c[i]>>f[i]>>v[i];
    }
    cin>>m;
    for(int i=0;i<m;i++){
        cin>>C[i]>>F[i]>>V[i];
    }
    int p[n],P[m];
    iota(p,p+n,0);iota(P,P+m,0);
    sort(p,p+n,[&](const int &x,const int &y){return f[x]>f[y];});
    sort(P,P+m,[&](const int &x,const int &y){return F[x]>F[y];});
    ll dp[n+1][51];
    for(int i=0;i<=n;i++){
        for(int j=0;j<=50;j++){
            dp[i][j]=-inf;
        }
    }
    dp[0][0]=0;
    for(int i=0;i<m;i++){
        ll dp2[n+1][51];
        for(int j=0;j<=n;j++){
            for(int l=0;l<=50;l++){
                dp2[j][l]=dp[j][l];
            }
        }
        for(int j=0;j<n;j++){
            for(int l=0;l<=50;l++){
                if(dp[j][l]==-inf)continue;
                dp[j+1][l]=max(dp[j+1][l],dp[j][l]);
                if(l>=C[P[i]]){
                    dp2[j][l-C[P[i]]]=max(dp2[j][l-C[P[i]]],dp[j][l]+V[P[i]]);
                }
                if(f[p[j]]>=F[P[i]]){
                    if(l+c[p[j]]<C[P[i]]){
                        dp[j+1][l+c[p[j]]]=max(dp[j+1][l+c[p[j]]],dp[j][l]-v[p[j]]);
                    }
                    else if(l<C[P[i]]){
                        dp2[j+1][l+c[p[j]]-C[P[i]]]=max(dp2[j+1][l+c[p[j]]-C[P[i]]],dp[j][l]+V[P[i]]-v[p[j]]);
                    }
                }
            }
        }
        for(int j=0;j<=n;j++){
            for(int l=0;l<=50;l++){
                dp[j][l]=dp2[j][l];
            }
        }
    }
    ll ans=0;
    for(int i=0;i<=n;i++){
        for(int j=0;j<=50;j++){
            ans=max(ans,dp[i][j]);
        }
    }
    cout<<ans;
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);
	bool usaco=0;if(usaco){freopen(".in","r",stdin);freopen(".out","w",stdout);}
	int t=1;
	if(!t)cin>>t;
	while(t--){code();cout<<endl;}
    return 0;
}

Compilation message (stderr)

clo.cpp: In function 'int main()':
clo.cpp:78:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |  bool usaco=0;if(usaco){freopen(".in","r",stdin);freopen(".out","w",stdout);}
      |                         ~~~~~~~^~~~~~~~~~~~~~~~~
clo.cpp:78:57: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |  bool usaco=0;if(usaco){freopen(".in","r",stdin);freopen(".out","w",stdout);}
      |                                                  ~~~~~~~^~~~~~~~~~~~~~~~~~~

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