제출 #1282385

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1282385		herominhsteve	Cloud Computing (CEOI18_clo)	C++20	100 / 100	418 ms	3668 KiB

clo

#include <bits/stdc++.h>
#define el '\n'
#define FNAME "NAME"
#define allof(x) x.begin(),x.end()
#define allof1(x) x.begin()+1,x.end()
#define mset(x,n) memset(x,(n),sizeof(x))
using namespace std;
const long long MOD = (long long) 1e9 + 7;
template<class X,class Y> bool minimize(X &a,Y b){ if (a>b) {a=b; return true;} return false;}
template<class X,class Y> bool maximize(X &a,Y b){ if (a<b) {a=b; return true;} return false;}

void setup(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
	if (fopen(FNAME".inp","r")){
		freopen(FNAME".inp","r",stdin);
		freopen(FNAME".out","w",stdout);
	}
}

const long long INF = (long long) 1e16 + 15092007;

struct PC{
	int core;
	long long req,price;
	PC():core(0),req(0),price(0) {}
	PC(int C,long long f,long long P):core(C),req(f),price(P) {}
	bool operator < (const PC &other) const{
		return req > other.req;
	}
};

int n,m;
vector<PC> a;
vector<PC> order;
int totalC;

void init(){
	cin>>n;
	a.resize(n);
	for (PC &x : a) cin>>x.core>>x.req>>x.price,totalC+=x.core;
	cin>>m;
	order.resize(m);
	for (PC &x : order) cin>>x.core>>x.req>>x.price,totalC+=x.core;
}

void sol(){
	sort(allof(a));
	sort(allof(order));

	int ptr = 0;
	vector<long long> dp(totalC+1,-INF);
	dp[0] = 0;
	int curC = 0;

	for (const PC &x : order){
		while (ptr < n and a[ptr].req >= x.req){
			int c = a[ptr].core;
			long long price = a[ptr].price;
			for (int k = curC; k>=0 ; k--){
				if (dp[k]==-INF) continue;
				maximize(dp[k + c], dp[k] - price);
			}
			ptr++;
			curC+=c;
		}
		int need = x.core;
		long long pay = x.price;
		if (need <= curC){
			vector<long long> nxt = dp;
			for (int k = need; k <= curC; k++){
				if (dp[k] == -INF) continue;
				maximize(nxt[k - need],dp[k] + pay);
			}
			dp.swap(nxt);
		}
	}
	cout<<*max_element(allof(dp));
}

int main(){
    setup();
    init();
    sol();
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'void setup()':
clo.cpp:16:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |                 freopen(FNAME".inp","r",stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:17:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |                 freopen(FNAME".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