oj.uz

답안 #878060

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878060 2023-11-24T04:04:43 Z marvinthang Fireworks (APIO16_fireworks) C++17
19 / 100
 15 ms 1116 KB 
/*************************************
*    author: marvinthang             *
*    created: 24.11.2023 10:53:02    *
*************************************/

#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i-- > 0; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")";  else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }
template <class A, class B> bool minimize(A &a, B b)  { if (a > b) { a = b; return true; } return false; }
template <class A, class B> bool maximize(A &a, B b)  { if (a < b) { a = b; return true; } return false; }

// end of template

const long long INF = 1e18;
const int MAX_LENGTH = 301;

void process(void) {
	int n, m; cin >> n >> m;
	vector <int> par(n + m), lengths(n + m);
	FOR(i, 1, n + m) {
		cin >> par[i] >> lengths[i];
		--par[i];
	}
	vector <vector <long long>> dp(n + m, vector<long long>(MAX_LENGTH));
	FORD(i, n + m, 1) {
		if (i >= n) fill(1 + ALL(dp[i]), INF);
		REP(j, MAX_LENGTH) {
			long long mi = INF;
			REP(k, j + 1) minimize(mi, dp[i][k] + abs(j - k - lengths[i]));
			dp[par[i]][j] += mi;
		}
	}
	cout << *min_element(ALL(dp[0])) << '\n';
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); // cout.tie(nullptr);
	file("fireworks");
	// int t; cin >> t; while (t--)
	process();
	// cerr << "Time elapsed: " << TIME << " s.\n";
	return (0^0);
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:30:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
fireworks.cpp:71:2: note: in expansion of macro 'file'
   71 |  file("fireworks");
      |  ^~~~
fireworks.cpp:30:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fireworks.cpp:71:2: note: in expansion of macro 'file'
   71 |  file("fireworks");
      |  ^~~~

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 348 KB Output is correct
3 Correct 3 ms 600 KB Output is correct
4 Correct 5 ms 684 KB Output is correct
5 Correct 6 ms 604 KB Output is correct
6 Correct 6 ms 768 KB Output is correct
7 Correct 8 ms 604 KB Output is correct
8 Correct 10 ms 860 KB Output is correct
9 Correct 9 ms 860 KB Output is correct
10 Correct 10 ms 860 KB Output is correct
11 Correct 11 ms 860 KB Output is correct
12 Correct 13 ms 856 KB Output is correct
13 Correct 13 ms 1108 KB Output is correct
14 Correct 14 ms 1116 KB Output is correct
15 Correct 14 ms 1116 KB Output is correct
16 Correct 14 ms 1116 KB Output is correct
17 Correct 14 ms 1116 KB Output is correct
18 Correct 14 ms 1112 KB Output is correct
19 Correct 15 ms 1116 KB Output is correct

Subtask #3
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -