Submission #20928

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
20928	2017-03-21T17:44:33 Z	gs14004	Rope (JOI17_rope)	C++11	80 / 100	503 ms	103796 KB

rope

#include <bits/stdc++.h>
typedef long long lint;
typedef long double llf;
using namespace std;
typedef pair<int, int> pi;

int n, m, a[1000005];
int ans[5005];
int tab[5005][5005];

void update(int sx, int ex, int sy, int ey, int v){
	tab[sx][sy] += v;
	tab[ex+1][sy] -= v;
	tab[sx][ey+1] -= v;
	tab[ex+1][ey+1] += v;
}

void get_table(int s, int e){
	memset(tab, 0, sizeof(tab));
	for(int i=s+1; i<=e; i+=2){
		if(a[i-1] == a[i]){
			update(1, a[i-1] - 1, 1, a[i-1] - 1, 2);
			update(a[i-1] + 1, m, 1, a[i-1] - 1, 2);
			update(1, a[i-1] - 1, a[i-1] + 1, m, 2);
			update(a[i-1] + 1, m, a[i-1] + 1, m, 2);
		}
		else{
			int x = min(a[i-1], a[i]);
			int y = max(a[i-1], a[i]);
			update(1, m, 1, m, 1);
			update(1, x-1, 1, x-1, 1);
			update(x+1, y-1, 1, x-1, 1);
			update(y+1, m, 1, x-1, 1);
			update(1, x-1, x+1, y-1, 1);
			update(x+1, y-1, x+1, y-1, 1);
			update(y+1, m, x+1, y-1, 1);
			update(1, x-1, y+1, m, 1);
			update(x+1, y-1, y+1, m, 1);
			update(y+1, m, y+1, m, 1);
		}
	}
}

void apply(){
	for(int i=1; i<=m; i++){
		for(int j=1; j<=m; j++){
			tab[i][j] += tab[i-1][j] + tab[i][j-1] - tab[i-1][j-1];
		}
	}
}

int main(){
	scanf("%d %d",&n,&m);
	for(int i=1; i<=n; i++){
		scanf("%d",&a[i]);
	}
	if(m > 5000) return 0;
	memset(ans, 0x3f, sizeof(ans));
	if(n % 2 == 0){
		get_table(1, n);
		apply();
		for(int i=1; i<=m; i++){
			for(int j=1; j<=i; j++){
				ans[i] = min(ans[i], tab[i][j]);
				ans[j] = min(ans[j], tab[i][j]);
			}
		}
		get_table(2, n-1);
		for(int i=1; i<=n; i+=n-1){
			update(1, a[i] - 1, 1, a[i] - 1, 1);
			update(a[i] + 1, m, 1, a[i] - 1, 1);
			update(1, a[i] - 1, a[i] + 1, m, 1);
			update(a[i] + 1, m, a[i] + 1, m, 1);
		}
		apply();
		for(int i=1; i<=m; i++){
			for(int j=1; j<=i; j++){
				ans[i] = min(ans[i], tab[i][j]);
				ans[j] = min(ans[j], tab[i][j]);
			}
		}
	}
	else{
		get_table(1, n-1);
		update(1, a[n] - 1, 1, a[n] - 1, 1);
		update(a[n] + 1, m, 1, a[n] - 1, 1);
		update(1, a[n] - 1, a[n] + 1, m, 1);
		update(a[n] + 1, m, a[n] + 1, m, 1);
		apply();
		for(int i=1; i<=m; i++){
			for(int j=1; j<=i; j++){
				ans[i] = min(ans[i], tab[i][j]);
				ans[j] = min(ans[j], tab[i][j]);
			}
		}
		get_table(2, n);
		update(1, a[1] - 1, 1, a[1] - 1, 1);
		update(a[1] + 1, m, 1, a[1] - 1, 1);
		update(1, a[1] - 1, a[1] + 1, m, 1);
		update(a[1] + 1, m, a[1] + 1, m, 1);
		apply();
		for(int i=1; i<=m; i++){
			for(int j=1; j<=i; j++){
				ans[i] = min(ans[i], tab[i][j]);
				ans[j] = min(ans[j], tab[i][j]);
			}
		}
	}
	for(int i=1; i<=m; i++) printf("%d\n", ans[i]);
}

Compilation message

rope.cpp: In function 'int main()':
rope.cpp:53:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
                      ^
rope.cpp:55:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
                    ^

Subtask #1
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	103796 KB	Output is correct
2	Correct	26 ms	103796 KB	Output is correct
3	Correct	29 ms	103796 KB	Output is correct
4	Correct	33 ms	103796 KB	Output is correct
5	Correct	29 ms	103796 KB	Output is correct
6	Correct	23 ms	103796 KB	Output is correct
7	Correct	26 ms	103796 KB	Output is correct
8	Correct	26 ms	103796 KB	Output is correct
9	Correct	26 ms	103796 KB	Output is correct
10	Correct	26 ms	103796 KB	Output is correct
11	Correct	33 ms	103796 KB	Output is correct
12	Correct	33 ms	103796 KB	Output is correct
13	Correct	23 ms	103796 KB	Output is correct
14	Correct	33 ms	103796 KB	Output is correct
15	Correct	26 ms	103796 KB	Output is correct
16	Correct	33 ms	103796 KB	Output is correct
17	Correct	33 ms	103796 KB	Output is correct
18	Correct	29 ms	103796 KB	Output is correct
19	Correct	29 ms	103796 KB	Output is correct
20	Correct	23 ms	103796 KB	Output is correct
21	Correct	26 ms	103796 KB	Output is correct
22	Correct	39 ms	103796 KB	Output is correct
23	Correct	26 ms	103796 KB	Output is correct
24	Correct	29 ms	103796 KB	Output is correct
25	Correct	29 ms	103796 KB	Output is correct
26	Correct	23 ms	103796 KB	Output is correct

Subtask #2
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	103796 KB	Output is correct
2	Correct	26 ms	103796 KB	Output is correct
3	Correct	29 ms	103796 KB	Output is correct
4	Correct	33 ms	103796 KB	Output is correct
5	Correct	29 ms	103796 KB	Output is correct
6	Correct	23 ms	103796 KB	Output is correct
7	Correct	26 ms	103796 KB	Output is correct
8	Correct	26 ms	103796 KB	Output is correct
9	Correct	26 ms	103796 KB	Output is correct
10	Correct	26 ms	103796 KB	Output is correct
11	Correct	33 ms	103796 KB	Output is correct
12	Correct	33 ms	103796 KB	Output is correct
13	Correct	23 ms	103796 KB	Output is correct
14	Correct	33 ms	103796 KB	Output is correct
15	Correct	26 ms	103796 KB	Output is correct
16	Correct	33 ms	103796 KB	Output is correct
17	Correct	33 ms	103796 KB	Output is correct
18	Correct	29 ms	103796 KB	Output is correct
19	Correct	29 ms	103796 KB	Output is correct
20	Correct	23 ms	103796 KB	Output is correct
21	Correct	26 ms	103796 KB	Output is correct
22	Correct	39 ms	103796 KB	Output is correct
23	Correct	26 ms	103796 KB	Output is correct
24	Correct	29 ms	103796 KB	Output is correct
25	Correct	29 ms	103796 KB	Output is correct
26	Correct	23 ms	103796 KB	Output is correct
27	Correct	46 ms	103796 KB	Output is correct
28	Correct	39 ms	103796 KB	Output is correct
29	Correct	46 ms	103796 KB	Output is correct
30	Correct	39 ms	103796 KB	Output is correct
31	Correct	46 ms	103796 KB	Output is correct
32	Correct	33 ms	103796 KB	Output is correct
33	Correct	43 ms	103796 KB	Output is correct
34	Correct	49 ms	103796 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	103796 KB	Output is correct
2	Correct	26 ms	103796 KB	Output is correct
3	Correct	29 ms	103796 KB	Output is correct
4	Correct	33 ms	103796 KB	Output is correct
5	Correct	29 ms	103796 KB	Output is correct
6	Correct	23 ms	103796 KB	Output is correct
7	Correct	26 ms	103796 KB	Output is correct
8	Correct	26 ms	103796 KB	Output is correct
9	Correct	26 ms	103796 KB	Output is correct
10	Correct	26 ms	103796 KB	Output is correct
11	Correct	33 ms	103796 KB	Output is correct
12	Correct	33 ms	103796 KB	Output is correct
13	Correct	23 ms	103796 KB	Output is correct
14	Correct	33 ms	103796 KB	Output is correct
15	Correct	26 ms	103796 KB	Output is correct
16	Correct	33 ms	103796 KB	Output is correct
17	Correct	33 ms	103796 KB	Output is correct
18	Correct	29 ms	103796 KB	Output is correct
19	Correct	29 ms	103796 KB	Output is correct
20	Correct	23 ms	103796 KB	Output is correct
21	Correct	26 ms	103796 KB	Output is correct
22	Correct	39 ms	103796 KB	Output is correct
23	Correct	26 ms	103796 KB	Output is correct
24	Correct	29 ms	103796 KB	Output is correct
25	Correct	29 ms	103796 KB	Output is correct
26	Correct	23 ms	103796 KB	Output is correct
27	Correct	46 ms	103796 KB	Output is correct
28	Correct	39 ms	103796 KB	Output is correct
29	Correct	46 ms	103796 KB	Output is correct
30	Correct	39 ms	103796 KB	Output is correct
31	Correct	46 ms	103796 KB	Output is correct
32	Correct	33 ms	103796 KB	Output is correct
33	Correct	43 ms	103796 KB	Output is correct
34	Correct	49 ms	103796 KB	Output is correct
35	Correct	56 ms	103796 KB	Output is correct
36	Correct	49 ms	103796 KB	Output is correct
37	Correct	43 ms	103796 KB	Output is correct
38	Correct	53 ms	103796 KB	Output is correct
39	Correct	49 ms	103796 KB	Output is correct
40	Correct	43 ms	103796 KB	Output is correct
41	Correct	56 ms	103796 KB	Output is correct
42	Correct	53 ms	103796 KB	Output is correct
43	Correct	49 ms	103796 KB	Output is correct
44	Correct	46 ms	103796 KB	Output is correct
45	Correct	46 ms	103796 KB	Output is correct
46	Correct	49 ms	103796 KB	Output is correct
47	Correct	59 ms	103796 KB	Output is correct

Subtask #4
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	103796 KB	Output is correct
2	Correct	26 ms	103796 KB	Output is correct
3	Correct	29 ms	103796 KB	Output is correct
4	Correct	33 ms	103796 KB	Output is correct
5	Correct	29 ms	103796 KB	Output is correct
6	Correct	23 ms	103796 KB	Output is correct
7	Correct	26 ms	103796 KB	Output is correct
8	Correct	26 ms	103796 KB	Output is correct
9	Correct	26 ms	103796 KB	Output is correct
10	Correct	26 ms	103796 KB	Output is correct
11	Correct	33 ms	103796 KB	Output is correct
12	Correct	33 ms	103796 KB	Output is correct
13	Correct	23 ms	103796 KB	Output is correct
14	Correct	33 ms	103796 KB	Output is correct
15	Correct	26 ms	103796 KB	Output is correct
16	Correct	33 ms	103796 KB	Output is correct
17	Correct	33 ms	103796 KB	Output is correct
18	Correct	29 ms	103796 KB	Output is correct
19	Correct	29 ms	103796 KB	Output is correct
20	Correct	23 ms	103796 KB	Output is correct
21	Correct	26 ms	103796 KB	Output is correct
22	Correct	39 ms	103796 KB	Output is correct
23	Correct	26 ms	103796 KB	Output is correct
24	Correct	29 ms	103796 KB	Output is correct
25	Correct	29 ms	103796 KB	Output is correct
26	Correct	23 ms	103796 KB	Output is correct
27	Correct	46 ms	103796 KB	Output is correct
28	Correct	39 ms	103796 KB	Output is correct
29	Correct	46 ms	103796 KB	Output is correct
30	Correct	39 ms	103796 KB	Output is correct
31	Correct	46 ms	103796 KB	Output is correct
32	Correct	33 ms	103796 KB	Output is correct
33	Correct	43 ms	103796 KB	Output is correct
34	Correct	49 ms	103796 KB	Output is correct
35	Correct	56 ms	103796 KB	Output is correct
36	Correct	49 ms	103796 KB	Output is correct
37	Correct	43 ms	103796 KB	Output is correct
38	Correct	53 ms	103796 KB	Output is correct
39	Correct	49 ms	103796 KB	Output is correct
40	Correct	43 ms	103796 KB	Output is correct
41	Correct	56 ms	103796 KB	Output is correct
42	Correct	53 ms	103796 KB	Output is correct
43	Correct	49 ms	103796 KB	Output is correct
44	Correct	46 ms	103796 KB	Output is correct
45	Correct	46 ms	103796 KB	Output is correct
46	Correct	49 ms	103796 KB	Output is correct
47	Correct	59 ms	103796 KB	Output is correct
48	Correct	503 ms	103796 KB	Output is correct
49	Correct	493 ms	103796 KB	Output is correct
50	Correct	469 ms	103796 KB	Output is correct
51	Correct	329 ms	103796 KB	Output is correct
52	Correct	223 ms	103796 KB	Output is correct
53	Correct	386 ms	103796 KB	Output is correct
54	Correct	383 ms	103796 KB	Output is correct
55	Correct	359 ms	103796 KB	Output is correct
56	Correct	359 ms	103796 KB	Output is correct

Subtask #5
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	103796 KB	Output is correct
2	Correct	26 ms	103796 KB	Output is correct
3	Correct	29 ms	103796 KB	Output is correct
4	Correct	33 ms	103796 KB	Output is correct
5	Correct	29 ms	103796 KB	Output is correct
6	Correct	23 ms	103796 KB	Output is correct
7	Correct	26 ms	103796 KB	Output is correct
8	Correct	26 ms	103796 KB	Output is correct
9	Correct	26 ms	103796 KB	Output is correct
10	Correct	26 ms	103796 KB	Output is correct
11	Correct	33 ms	103796 KB	Output is correct
12	Correct	33 ms	103796 KB	Output is correct
13	Correct	23 ms	103796 KB	Output is correct
14	Correct	33 ms	103796 KB	Output is correct
15	Correct	26 ms	103796 KB	Output is correct
16	Correct	33 ms	103796 KB	Output is correct
17	Correct	33 ms	103796 KB	Output is correct
18	Correct	29 ms	103796 KB	Output is correct
19	Correct	29 ms	103796 KB	Output is correct
20	Correct	23 ms	103796 KB	Output is correct
21	Correct	26 ms	103796 KB	Output is correct
22	Correct	39 ms	103796 KB	Output is correct
23	Correct	26 ms	103796 KB	Output is correct
24	Correct	29 ms	103796 KB	Output is correct
25	Correct	29 ms	103796 KB	Output is correct
26	Correct	23 ms	103796 KB	Output is correct
27	Correct	46 ms	103796 KB	Output is correct
28	Correct	39 ms	103796 KB	Output is correct
29	Correct	46 ms	103796 KB	Output is correct
30	Correct	39 ms	103796 KB	Output is correct
31	Correct	46 ms	103796 KB	Output is correct
32	Correct	33 ms	103796 KB	Output is correct
33	Correct	43 ms	103796 KB	Output is correct
34	Correct	49 ms	103796 KB	Output is correct
35	Correct	56 ms	103796 KB	Output is correct
36	Correct	49 ms	103796 KB	Output is correct
37	Correct	43 ms	103796 KB	Output is correct
38	Correct	53 ms	103796 KB	Output is correct
39	Correct	49 ms	103796 KB	Output is correct
40	Correct	43 ms	103796 KB	Output is correct
41	Correct	56 ms	103796 KB	Output is correct
42	Correct	53 ms	103796 KB	Output is correct
43	Correct	49 ms	103796 KB	Output is correct
44	Correct	46 ms	103796 KB	Output is correct
45	Correct	46 ms	103796 KB	Output is correct
46	Correct	49 ms	103796 KB	Output is correct
47	Correct	59 ms	103796 KB	Output is correct
48	Correct	503 ms	103796 KB	Output is correct
49	Correct	493 ms	103796 KB	Output is correct
50	Correct	469 ms	103796 KB	Output is correct
51	Correct	329 ms	103796 KB	Output is correct
52	Correct	223 ms	103796 KB	Output is correct
53	Correct	386 ms	103796 KB	Output is correct
54	Correct	383 ms	103796 KB	Output is correct
55	Correct	359 ms	103796 KB	Output is correct
56	Correct	359 ms	103796 KB	Output is correct
57	Incorrect	153 ms	103796 KB	Output isn't correct
58	Halted	0 ms	0 KB	-

Submission #20928

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 30.0 / 30.0

Subtask #3 10.0 / 10.0

Subtask #4 25.0 / 25.0

Subtask #5 0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
30.0 / 30.0

Subtask #3
10.0 / 10.0

Subtask #4
25.0 / 25.0

Subtask #5
0 / 20.0