답안 #742476

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
742476 2023-05-16T09:55:38 Z hmm789 Tortoise (CEOI21_tortoise) C++14
18 / 100
53 ms 3256 KB
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF 1000000000000000000

int32_t main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, ans = INF;
	cin >> n;
	int a[n], lt[n], rt[n], pref[n];
	pair<int, int> dp[2*n+1][n];
	for(int i = 0; i < n; i++) cin >> a[i];
	lt[0] = a[0]==-1?0:INF;
	for(int i = 1; i < n; i++) {
		lt[i] = lt[i-1];
		if(a[i] == -1) lt[i] = i;
	}
	rt[n-1] = a[n-1]==-1?n-1:INF;
	for(int i = n-2; i >= 0; i--) {
		rt[i] = rt[i+1];
		if(a[i] == -1) rt[i] = i;
	}
	pref[0] = max(a[0], 0LL);
	for(int i = 1; i < n; i++) pref[i] = pref[i-1]+max(a[i], 0LL);
	for(int i = 0; i <= 2*n; i++) {
		for(int j = 0; j < n; j++) {
			dp[i][j].first = INF;
			dp[i][j].second = 0;
		}
	}
	for(int i = 0; i <= 2*n; i++) {
		for(int j = 0; j < n; j++) {
			if(a[j] <= 0) continue;
			if(i < j) continue;
			if(max(pref[j]-1, 0LL) < dp[i][j].first) {
				dp[i][j] = {max(pref[j]-1, 0LL), 1};
			}
			int sm = 0;
			for(int k = j; k < n; k++) {
				if(k > j) sm += max(a[k], 0LL);
				if(a[k] <= 0) continue;
				int dist = min(abs(j-lt[j])+abs(k-lt[j]), abs(rt[j]-j)+abs(rt[j]-k));
				//~ cout << "b " << i << " " << j << " " << k << " " << dist+i << endl;
				if(dist+i > 2*n) continue;
				if(dist+i > 2*k) continue;
				if(k == j) {
					if(dp[i][j].second < a[k] && dp[dist+i][k].first > max(dp[i][j].first-1, 0LL)) {
						dp[dist+i][k] = {max(dp[i][j].first-1, 0LL), dp[i][j].second+1};
						//~ cout << dp[dist+i][k].first << endl;
					}
				} else {
					//~ cout << "b " << dp[dist+i][k].first<< " " <<  dp[i][j].first+max(sm-1, 0LL) << endl;
					if(dp[dist+i][k].first > dp[i][j].first+max(sm-1, 0LL)) {
						dp[dist+i][k] = {dp[i][j].first+max(sm-1, 0LL), 1};
						//~ cout << dp[dist+i][k].first << endl;
					}
				}
				//~ cout << "a " << i << " " << j << " " << k << " " << dist+i << " " << dp[dist+i][k].first << " " << dp[i][j].first << " " << sm << endl;
			}
			ans = min(ans, dp[i][j].first+pref[n-1]-pref[j]);
		}
	}
	cout << ans;
	
	//~ cout << endl;
	//~ for(int i = 0; i <= 2*n; i++) {
		//~ for(int j = 0; j < n; j++) {
			//~ cout << dp[i][j].first << " ";
		//~ }
		//~ cout << endl;
	//~ }
	
	//~ cout << endl;
	//~ for(int i = 0; i < n; i++) cout << lt[i] << " ";
	//~ cout << endl;
	//~ for(int i = 0; i < n; i++) cout << rt[i] << " ";
}


# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 316 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 316 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 18 ms 2260 KB Output is correct
28 Correct 53 ms 2980 KB Output is correct
29 Correct 35 ms 2620 KB Output is correct
30 Correct 22 ms 2260 KB Output is correct
31 Correct 24 ms 3028 KB Output is correct
32 Correct 13 ms 1772 KB Output is correct
33 Correct 26 ms 2656 KB Output is correct
34 Correct 25 ms 2260 KB Output is correct
35 Correct 23 ms 3028 KB Output is correct
36 Correct 20 ms 3028 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 27 ms 3256 KB Output is correct
39 Correct 25 ms 3028 KB Output is correct
40 Correct 21 ms 3028 KB Output is correct
41 Correct 19 ms 3028 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 316 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 18 ms 2260 KB Output is correct
28 Correct 53 ms 2980 KB Output is correct
29 Correct 35 ms 2620 KB Output is correct
30 Correct 22 ms 2260 KB Output is correct
31 Correct 24 ms 3028 KB Output is correct
32 Correct 13 ms 1772 KB Output is correct
33 Correct 26 ms 2656 KB Output is correct
34 Correct 25 ms 2260 KB Output is correct
35 Correct 23 ms 3028 KB Output is correct
36 Correct 20 ms 3028 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 27 ms 3256 KB Output is correct
39 Correct 25 ms 3028 KB Output is correct
40 Correct 21 ms 3028 KB Output is correct
41 Correct 19 ms 3028 KB Output is correct
42 Correct 3 ms 1492 KB Output is correct
43 Incorrect 6 ms 1620 KB Output isn't correct
44 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 316 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 18 ms 2260 KB Output is correct
28 Correct 53 ms 2980 KB Output is correct
29 Correct 35 ms 2620 KB Output is correct
30 Correct 22 ms 2260 KB Output is correct
31 Correct 24 ms 3028 KB Output is correct
32 Correct 13 ms 1772 KB Output is correct
33 Correct 26 ms 2656 KB Output is correct
34 Correct 25 ms 2260 KB Output is correct
35 Correct 23 ms 3028 KB Output is correct
36 Correct 20 ms 3028 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 27 ms 3256 KB Output is correct
39 Correct 25 ms 3028 KB Output is correct
40 Correct 21 ms 3028 KB Output is correct
41 Correct 19 ms 3028 KB Output is correct
42 Correct 3 ms 1492 KB Output is correct
43 Incorrect 6 ms 1620 KB Output isn't correct
44 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 316 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 18 ms 2260 KB Output is correct
28 Correct 53 ms 2980 KB Output is correct
29 Correct 35 ms 2620 KB Output is correct
30 Correct 22 ms 2260 KB Output is correct
31 Correct 24 ms 3028 KB Output is correct
32 Correct 13 ms 1772 KB Output is correct
33 Correct 26 ms 2656 KB Output is correct
34 Correct 25 ms 2260 KB Output is correct
35 Correct 23 ms 3028 KB Output is correct
36 Correct 20 ms 3028 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 27 ms 3256 KB Output is correct
39 Correct 25 ms 3028 KB Output is correct
40 Correct 21 ms 3028 KB Output is correct
41 Correct 19 ms 3028 KB Output is correct
42 Correct 3 ms 1492 KB Output is correct
43 Incorrect 6 ms 1620 KB Output isn't correct
44 Halted 0 ms 0 KB -