답안 #341807

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
341807	2020-12-31T05:18:34 Z	egod1537	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	컴파일 오류	0 ms	0 KB

skyscraper

#include <bits/stdc++.h>

using namespace std;

const int INF = 0x3f3f3f3f;

typedef pair<int, int> pi;
#define to first
#define cost second
#define pos first
#define range second

struct Q {
	int pos, cost;
};
bool operator<(const Q& a, const Q& b) {
	return a.cost > b.cost;
}

vector<pi> V[30001];
int dst[30001];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);

	memset(dst, INF, sizeof(dst));

	int n, m; cin >> n >> m;
	vector<pi> doge(m);
	vector<int> posdoge(n + 1, -1);

	int s = 0, e = 0;
	for (int i = 0; i < m; i++) {
		cin >> doge[i].pos >> doge[i].range;
		if (i == 0) s = doge[i].pos;
		if (i == 1) e = doge[i].pos;
	}

	for (int i = 0; i < m; i++) {
		pi& now = doge[i];
		for (int j = now.pos + now.range; j < n; j += now.range) {
			int dst = j - now.pos;
			V[now.pos].push_back({ j, dst / now.range });
		}
		for (int j = now.pos - now.range; j >= 0; j -= now.range) {
			int dst = now.pos - j;
			V[now.pos].push_back({ j, dst / now.range });
		}
	}

	priority_queue<Q, vector<Q>, cmp> pq;
	pq.push({ s, 0 });
	while (!pq.empty()) {
		Q top = pq.top(); pq.pop();

		if (top.pos == e) {
			cout << top.cost;
			return 0;
		}

		for (pi w : V[top.pos]) {
			if (dst[w.to] > top.cost + w.cost) {
				dst[w.to] = top.cost + w.cost;
				pq.push({ w.to, dst[w.to] });
			}
		}
	}

	cout << -1;

	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:52:31: error: 'cmp' was not declared in this scope; did you mean 'bcmp'?
   52 |  priority_queue<Q, vector<Q>, cmp> pq;
      |                               ^~~
      |                               bcmp
skyscraper.cpp:52:34: error: template argument 3 is invalid
   52 |  priority_queue<Q, vector<Q>, cmp> pq;
      |                                  ^
skyscraper.cpp:53:5: error: request for member 'push' in 'pq', which is of non-class type 'int'
   53 |  pq.push({ s, 0 });
      |     ^~~~
skyscraper.cpp:54:13: error: request for member 'empty' in 'pq', which is of non-class type 'int'
   54 |  while (!pq.empty()) {
      |             ^~~~~
skyscraper.cpp:55:14: error: request for member 'top' in 'pq', which is of non-class type 'int'
   55 |   Q top = pq.top(); pq.pop();
      |              ^~~
skyscraper.cpp:55:24: error: request for member 'pop' in 'pq', which is of non-class type 'int'
   55 |   Q top = pq.top(); pq.pop();
      |                        ^~~
skyscraper.cpp:65:8: error: request for member 'push' in 'pq', which is of non-class type 'int'
   65 |     pq.push({ w.to, dst[w.to] });
      |        ^~~~