제출 #540281

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
540281		UncoolAnon	Cloud Computing (CEOI18_clo)	C++17	0 / 100	1 ms	344 KiB

clo

#include <bits/stdc++.h>
#define int long long 
#define pb push_back 
#define sz(a) ((int)a.size())
using namespace std; 
const int N=50,bal=20,inf=(1LL<<60);  

signed main(){
	#ifndef ONLINE_JUDGE
		freopen("in.txt","r",stdin); 
		freopen("out.txt","w",stdout); 
	#endif 
	int n;
	cin>>n; 
	vector<int> c,f,v;
	vector<int> index;
	for(int i=0;i<n;i++){
		int ci,fi,vi; cin>>ci>>fi>>vi; 
		c.pb(ci); f.pb(fi); v.pb(vi*-1); 
		index.push_back(i);
	}
	int m; 
	cin>>m;
	for(int i=0;i<m;i++){
		int ci,fi,vi; cin>>ci>>fi>>vi; 
		index.push_back(sz(c)); 
		c.pb(ci*-1);f.pb(fi); v.pb(vi); 
	}
	sort(index.begin(),index.end(),[&](int a,int b){if(f[a]==f[b]) return c[a]>c[b]; return f[a]>f[b]; }); 
	vector<int> dp(N,-inf); 
	dp[0]=0; 
	int answer=0; 
	for(int i:index){
		vector<int> ndp=dp;
		for(int value=0;value<N;value++)
			if(value-c[i]<N&&value-c[i]>=0)
				ndp[value]=max(dp[value-c[i]]+v[i],ndp[value]); 
		dp=ndp; 
		for(int value=0;value<N;value++) 
			answer=max(answer,dp[value]); 
	}
	cout<<answer; 
	return 0; 
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'int main()':
clo.cpp:10:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   freopen("in.txt","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~
clo.cpp:11:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   freopen("out.txt","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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