結果

問題 No.2408 Lakes and Fish
ユーザー polylogK
提出日時 2023-08-11 21:34:47
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 63 ms / 2,000 ms
コード長 1,312 bytes
コンパイル時間 2,138 ms
コンパイル使用メモリ 199,092 KB
最終ジャッジ日時 2025-02-16 01:07:35
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 19
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:66:20: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘i64’ {aka ‘long int’} [-Wformat=]
   66 |         printf("%lld\n", ans);
      |                 ~~~^     ~~~
      |                    |     |
      |                    |     i64 {aka long int}
      |                    long long int
      |                 %ld
main.cpp:29:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   29 |         scanf("%d%d", &n, &m);
      |         ~~~~~^~~~~~~~~~~~~~~~
main.cpp:33:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   33 |                 scanf("%d", &v);
      |                 ~~~~~^~~~~~~~~~
main.cpp:37:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   37 |                 scanf("%d%d%d", &f[i], &b[i], &w[i]);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

ソースコード

diff #

#include <bits/stdc++.h>
using namespace std::literals::string_literals;
using i64 = std::int_fast64_t;
using std::cerr;
using std::cin;
using std::cout;
using std::endl;

#if defined(DONLINE_JUDGE)
#define NDEBUG
#elif defined(ONLINE_JUDGE)
#define NDEBUG
#endif

template <typename T>
std::vector<T> make_v(size_t a)
{
	return std::vector<T>(a);
}
template <typename T, typename... Ts>
auto make_v(size_t a, Ts... ts)
{
	return std::vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...));
}

int main()
{
	int n, m;
	scanf("%d%d", &n, &m);

	std::vector<int> l(n);
	for (auto &v : l)
		scanf("%d", &v);

	std::vector<int> f(m), b(m), w(m);
	for (int i = 0; i < m; ++i)
		scanf("%d%d%d", &f[i], &b[i], &w[i]);

	std::vector<int> ord(m);
	std::iota(ord.begin(), ord.end(), 0);
	std::sort(ord.begin(), ord.end(), [&](int i, int j)
			  { return f[i] < f[j]; });

	i64 ans = std::accumulate(b.begin(), b.end(), 0LL);
	int j = 0;
	for (int i : ord)
	{
		while (j < n and l[j] <= f[i])
			++j;

		if (j < n and l[j] == f[i])
			continue;

		int near = 1 << 30;
		if (j < n)
			near = std::min(near, l[j] - f[i]);
		if (j - 1 >= 0)
			near = std::min(near, f[i] - l[j - 1]);

		const int prev = b[i];
		const int next = w[i] - near;
		if (next > prev)
			ans += next - prev;
	}

	printf("%lld\n", ans);
	return 0;
}
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