답안 #15866 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
15866	2015-07-31T17:11:01 Z	myungwoo	Palembang Bridges (APIO15_bridge)	C++14	100 / 100	86 ms	6324 KB

bridge

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

#define MAXN 100005
#define pb push_back
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
typedef long long lld;

int K, N, M;
lld D[MAXN], E[MAXN];

struct Z{
	int a, b;
} A[MAXN];

void proc(lld V[])
{
	if (!N) return;
	lld val = abs(A[1].a - A[1].b);
	priority_queue <int> p, q;
	int mid = A[1].a;
	if (A[1].b < mid) p.push(A[1].b);
	else q.push(-A[1].b);
	V[1] = val;
	for (int i=2;i<=N;i++){
		val += abs(mid - A[i].a) + abs(mid - A[i].b);
		if (A[i].a < mid) p.push(A[i].a);
		else q.push(-A[i].a);
		if (A[i].b < mid) p.push(A[i].b);
		else q.push(-A[i].b);
		while (sz(p) < sz(q)){
			int nxt = -q.top(); q.pop();
			p.push(mid);
			val += (lld)(nxt - mid) * sz(p) - (lld)(nxt - mid) * (sz(q) + 1);
			mid = nxt;
		}
		while (sz(p) > sz(q)+1){
			int nxt = p.top(); p.pop();
			q.push(-mid);
			val += (lld)(mid - nxt) * sz(q) - (lld)(mid - nxt) * (sz(p) + 1);
			mid = nxt;
		}
		V[i] = val;
	}
}

int main()
{
	scanf("%d%d", &K, &M);
	vector <int> arr;
	lld def = 0;
	while (M--){
		char p, q; int a, b;
		scanf(" %c%d %c%d", &p, &a, &q, &b);
		if (p == q){ def += abs(a-b); continue; }
		A[++N] = {a, b};
	}
	sort(A+1, A+N+1, [](const Z &a, const Z &b){
		return a.a+a.b < b.a+b.b;
	});
	proc(D);
	if (K == 1){ printf("%lld\n", D[N] + def + N); return 0; }
	reverse(A+1, A+N+1);
	proc(E);
	lld ans = 1e18;
	for (int i=0;i<=N;i++) ans = min(ans, def + D[i] + E[N-i] + N);
	printf("%lld\n", ans);
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:50:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &K, &M);
                       ^
bridge.cpp:55:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c%d %c%d", &p, &a, &q, &b);
                                      ^

Subtask #1
8.0 / 8.0

#	결과	메모리	Grader output
1	Correct	4368 KB	Output is correct
2	Correct	4368 KB	Output is correct
3	Correct	4368 KB	Output is correct
4	Correct	4368 KB	Output is correct
5	Correct	4368 KB	Output is correct
6	Correct	4368 KB	Output is correct
7	Correct	4368 KB	Output is correct
8	Correct	4368 KB	Output is correct
9	Correct	4368 KB	Output is correct
10	Correct	4368 KB	Output is correct
11	Correct	4368 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4368 KB	Output is correct
2	Correct	0 ms	4368 KB	Output is correct
3	Correct	0 ms	4368 KB	Output is correct
4	Correct	0 ms	4368 KB	Output is correct
5	Correct	0 ms	4368 KB	Output is correct
6	Correct	0 ms	4368 KB	Output is correct
7	Correct	0 ms	4368 KB	Output is correct
8	Correct	0 ms	4368 KB	Output is correct
9	Correct	0 ms	4368 KB	Output is correct
10	Correct	0 ms	4368 KB	Output is correct
11	Correct	0 ms	4368 KB	Output is correct
12	Correct	33 ms	5820 KB	Output is correct
13	Correct	66 ms	5736 KB	Output is correct
14	Correct	49 ms	5736 KB	Output is correct
15	Correct	36 ms	5184 KB	Output is correct
16	Correct	33 ms	5820 KB	Output is correct
17	Correct	53 ms	5820 KB	Output is correct
18	Correct	43 ms	5820 KB	Output is correct
19	Correct	63 ms	5820 KB	Output is correct
20	Correct	46 ms	5820 KB	Output is correct
21	Correct	63 ms	5820 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	4368 KB	Output is correct
2	Correct	4368 KB	Output is correct
3	Correct	4368 KB	Output is correct
4	Correct	4368 KB	Output is correct
5	Correct	4368 KB	Output is correct
6	Correct	4368 KB	Output is correct
7	Correct	4368 KB	Output is correct
8	Correct	4368 KB	Output is correct
9	Correct	4368 KB	Output is correct
10	Correct	4368 KB	Output is correct
11	Correct	4368 KB	Output is correct
12	Correct	4368 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	메모리	Grader output
1	Correct	4368 KB	Output is correct
2	Correct	4368 KB	Output is correct
3	Correct	4368 KB	Output is correct
4	Correct	4368 KB	Output is correct
5	Correct	4368 KB	Output is correct
6	Correct	4368 KB	Output is correct
7	Correct	4368 KB	Output is correct
8	Correct	4368 KB	Output is correct
9	Correct	4368 KB	Output is correct
10	Correct	4368 KB	Output is correct
11	Correct	4368 KB	Output is correct
12	Correct	4368 KB	Output is correct
13	Correct	4368 KB	Output is correct
14	Correct	4368 KB	Output is correct
15	Correct	4368 KB	Output is correct
16	Correct	4368 KB	Output is correct
17	Correct	4368 KB	Output is correct
18	Correct	4368 KB	Output is correct
19	Correct	4368 KB	Output is correct
20	Correct	4368 KB	Output is correct
21	Correct	4368 KB	Output is correct
22	Correct	4368 KB	Output is correct
23	Correct	4368 KB	Output is correct
24	Correct	4368 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4368 KB	Output is correct
2	Correct	0 ms	4368 KB	Output is correct
3	Correct	0 ms	4368 KB	Output is correct
4	Correct	0 ms	4368 KB	Output is correct
5	Correct	0 ms	4368 KB	Output is correct
6	Correct	0 ms	4368 KB	Output is correct
7	Correct	0 ms	4368 KB	Output is correct
8	Correct	0 ms	4368 KB	Output is correct
9	Correct	0 ms	4368 KB	Output is correct
10	Correct	0 ms	4368 KB	Output is correct
11	Correct	0 ms	4368 KB	Output is correct
12	Correct	0 ms	4368 KB	Output is correct
13	Correct	0 ms	4368 KB	Output is correct
14	Correct	0 ms	4368 KB	Output is correct
15	Correct	0 ms	4368 KB	Output is correct
16	Correct	0 ms	4368 KB	Output is correct
17	Correct	0 ms	4368 KB	Output is correct
18	Correct	0 ms	4368 KB	Output is correct
19	Correct	0 ms	4368 KB	Output is correct
20	Correct	0 ms	4368 KB	Output is correct
21	Correct	0 ms	4368 KB	Output is correct
22	Correct	0 ms	4368 KB	Output is correct
23	Correct	0 ms	4368 KB	Output is correct
24	Correct	0 ms	4368 KB	Output is correct
25	Correct	39 ms	5820 KB	Output is correct
26	Correct	43 ms	5808 KB	Output is correct
27	Correct	69 ms	5808 KB	Output is correct
28	Correct	83 ms	5808 KB	Output is correct
29	Correct	79 ms	5808 KB	Output is correct
30	Correct	39 ms	5296 KB	Output is correct
31	Correct	33 ms	5820 KB	Output is correct
32	Correct	86 ms	5820 KB	Output is correct
33	Correct	53 ms	5820 KB	Output is correct
34	Correct	76 ms	5820 KB	Output is correct
35	Correct	66 ms	6324 KB	Output is correct
36	Correct	76 ms	5820 KB	Output is correct
37	Correct	36 ms	5820 KB	Output is correct

답안 #15866

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 14.0 / 14.0

Subtask #3 9.0 / 9.0

Subtask #4 32.0 / 32.0

Subtask #5 37.0 / 37.0

Subtask #1
8.0 / 8.0

Subtask #2
14.0 / 14.0

Subtask #3
9.0 / 9.0

Subtask #4
32.0 / 32.0

Subtask #5
37.0 / 37.0