Submission #716816

#	Time	Username	Problem	Language	Result	Execution time	Memory
716816		Baytoro	Cloud Computing (CEOI18_clo)	C++17	100 / 100	626 ms	2124 KiB

clo

#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false); cin.tie(NULL);cout.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define endl '\n'
#define ll long long
#define int long long
void fopn(string name){
	freopen((name+".in").c_str(),"r",stdin);
	freopen((name+".out").c_str(),"w",stdout);
}
const ll INF=1e18,mod=1e9+9,N=2e5+5;
struct node{
	int c,f,p;
} a[4005];
bool cmp(node a, node b){
	if(a.f==b.f) return a.p<b.p;
	return a.f>b.f;
}
void solve(){
	int n;cin>>n;
	int sum=0;
	for(int i=0;i<n;i++) {cin>>a[i].c>>a[i].f>>a[i].p;a[i].p=-a[i].p,sum+=a[i].c;}
	int m;cin>>m;
	for(int i=n;i<n+m;i++) {cin>>a[i].c>>a[i].f>>a[i].p;a[i].c=-a[i].c;}
	sort(a,a+n+m,cmp);
	vector<int> pref(sum+1,-INF),prev(sum+1,-INF);
	pref[0]=prev[0]=0;
	for(int i=0;i<n+m;i++){
		for(int j=0;j<=sum;j++){
			int x=j-a[i].c;
			if(0<=x && x<=sum && pref[x]!=-INF){
				prev[j]=max(prev[j],pref[x]+a[i].p);
			}
		}
		pref=prev;
	}
	int ans=-INF;
	for(auto it: pref) ans=max(ans,it);
	cout<<ans;
}
main(){
	//fopn("team");
	//ios;
	int T=1;
	//cin>>T;
	for(int i=1;i<=T;i++){
		//cout<<"Case #"<<i<<": ";
		solve();
	}
}

Compilation message (stderr)

clo.cpp:46:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   46 | main(){
      | ^~~~
clo.cpp: In function 'void fopn(std::string)':
clo.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:14:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  freopen((name+".out").c_str(),"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