제출 #1110518

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1110518		vjudge1	Cloud Computing (CEOI18_clo)	C++17	100 / 100	251 ms	1528 KiB

clo

#include<bits/stdc++.h>
using namespace std;

const bool multiTest = false;
#define task "C"
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define BIT(mask, i) ((mask) >> (i) & 1)

template<typename T1, typename T2> bool minimize(T1 &a, T2 b) {
	if (a > b) a = b; else return 0; return 1;
}
template<typename T1, typename T2> bool maximize(T1 &a, T2 b) {
	if (a < b) a = b; else return 0; return 1;
}

struct node {
	int t, c, f, v;

	node(int _t = 0, int _c = 0, int _f = 0, int _v = 0) {
		t = _t;
		c = _c;
		f = _f;
		v = _v;
	}

	bool operator< (const node &other) const {
		if (f != other.f) return f > other.f;
		return t < other.t;
	}
};

const long long INF = 1e18 + 7;
int n, m, sum = 0;
node arr[4000];
long long f[100010];
long long g[100010];

void process(void) {
	cin >> n;
	for (int i = 0; i < n; ++i) {
		int c, f, v; 
		cin >> c >> f >> v;
		arr[i] = node(0, c, f, v);
	}
	cin >> m;
	for (int i = 0; i < m; ++i) {
		int c, f, v; 
		cin >> c >> f >> v;
		arr[n + i] = node(1, c, f, v);
	}

	for (int i = 0; i <= 100000; ++i) f[i] = -INF;
	f[0] = 0;
	sort(arr, arr + n + m);

	for (int i = 0; i < n + m; ++i) {
		if (arr[i].t == 0) {
			sum += arr[i].c;
			for (int j = sum; j >= arr[i].c; --j)
				maximize(f[j], f[j - arr[i].c] - arr[i].v);
		} else {
			for (int j = 0; j + arr[i].c <= sum; ++j) 
				maximize(f[j], f[j + arr[i].c] + arr[i].v);
		}
	}

	cout << *max_element(f, f + 1 + 100000);
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
	if (fopen(task".inp", "r")) {
		freopen(task".inp", "r",  stdin);
		freopen(task".out", "w", stdout);
	}

	int nTest = 1; if (multiTest) cin >> nTest;
	while (nTest--) {
		process();
	}

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'int main()':
clo.cpp:77:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   77 |   freopen(task".inp", "r",  stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:78:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |   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