Submission #20925

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
20925	2017-03-21T16:55:22 Z	gs14004	Rope (JOI17_rope)	C++11	45 / 100	29 ms	21552 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[1000005];
int dp[1000005][3];

int solve(int x, int y){
	for(int i=1; i<=n; i++){
		dp[i][0] = dp[i-1][1] + (a[i] != x);
		dp[i][1] = min(dp[i-1][0] + (a[i] != x), dp[i-1][2] + (a[i] != y));
		dp[i][2] = dp[i-1][1] + (a[i] != y);
	}
	return min({dp[n][0], dp[n][1], dp[n][2]});
}

int main(){
	scanf("%d %d",&n,&m);
	for(int i=1; i<=n; i++){
		scanf("%d",&a[i]);
	}
	if(m > 10) return 0;
	memset(ans, 0x3f, sizeof(ans));
	for(int i=1; i<=m; i++){
		for(int j=1; j<=i; j++){
			int x = solve(i, j);
			ans[i] = min(ans[i], x);
			ans[j] = min(ans[j], x);
		}
	}
	for(int i=1; i<=m; i++) printf("%d\n", ans[i]);
}

Compilation message

rope.cpp: In function 'int main()':
rope.cpp:21:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
                      ^
rope.cpp:23:20: 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	0 ms	21552 KB	Output is correct
2	Correct	0 ms	21552 KB	Output is correct
3	Correct	0 ms	21552 KB	Output is correct
4	Correct	3 ms	21552 KB	Output is correct
5	Correct	0 ms	21552 KB	Output is correct
6	Correct	0 ms	21552 KB	Output is correct
7	Correct	0 ms	21552 KB	Output is correct
8	Correct	0 ms	21552 KB	Output is correct
9	Correct	0 ms	21552 KB	Output is correct
10	Correct	0 ms	21552 KB	Output is correct
11	Correct	0 ms	21552 KB	Output is correct
12	Correct	0 ms	21552 KB	Output is correct
13	Correct	0 ms	21552 KB	Output is correct
14	Correct	0 ms	21552 KB	Output is correct
15	Correct	0 ms	21552 KB	Output is correct
16	Correct	3 ms	21552 KB	Output is correct
17	Correct	0 ms	21552 KB	Output is correct
18	Correct	0 ms	21552 KB	Output is correct
19	Correct	0 ms	21552 KB	Output is correct
20	Correct	0 ms	21552 KB	Output is correct
21	Correct	3 ms	21552 KB	Output is correct
22	Correct	3 ms	21552 KB	Output is correct
23	Correct	0 ms	21552 KB	Output is correct
24	Correct	0 ms	21552 KB	Output is correct
25	Correct	0 ms	21552 KB	Output is correct
26	Correct	3 ms	21552 KB	Output is correct

Subtask #2
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	21552 KB	Output is correct
2	Correct	0 ms	21552 KB	Output is correct
3	Correct	0 ms	21552 KB	Output is correct
4	Correct	3 ms	21552 KB	Output is correct
5	Correct	0 ms	21552 KB	Output is correct
6	Correct	0 ms	21552 KB	Output is correct
7	Correct	0 ms	21552 KB	Output is correct
8	Correct	0 ms	21552 KB	Output is correct
9	Correct	0 ms	21552 KB	Output is correct
10	Correct	0 ms	21552 KB	Output is correct
11	Correct	0 ms	21552 KB	Output is correct
12	Correct	0 ms	21552 KB	Output is correct
13	Correct	0 ms	21552 KB	Output is correct
14	Correct	0 ms	21552 KB	Output is correct
15	Correct	0 ms	21552 KB	Output is correct
16	Correct	3 ms	21552 KB	Output is correct
17	Correct	0 ms	21552 KB	Output is correct
18	Correct	0 ms	21552 KB	Output is correct
19	Correct	0 ms	21552 KB	Output is correct
20	Correct	0 ms	21552 KB	Output is correct
21	Correct	3 ms	21552 KB	Output is correct
22	Correct	3 ms	21552 KB	Output is correct
23	Correct	0 ms	21552 KB	Output is correct
24	Correct	0 ms	21552 KB	Output is correct
25	Correct	0 ms	21552 KB	Output is correct
26	Correct	3 ms	21552 KB	Output is correct
27	Correct	29 ms	21552 KB	Output is correct
28	Correct	16 ms	21552 KB	Output is correct
29	Correct	26 ms	21552 KB	Output is correct
30	Correct	16 ms	21552 KB	Output is correct
31	Correct	29 ms	21552 KB	Output is correct
32	Correct	13 ms	21552 KB	Output is correct
33	Correct	26 ms	21552 KB	Output is correct
34	Correct	23 ms	21552 KB	Output is correct

Subtask #3
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	21552 KB	Output is correct
2	Correct	0 ms	21552 KB	Output is correct
3	Correct	0 ms	21552 KB	Output is correct
4	Correct	3 ms	21552 KB	Output is correct
5	Correct	0 ms	21552 KB	Output is correct
6	Correct	0 ms	21552 KB	Output is correct
7	Correct	0 ms	21552 KB	Output is correct
8	Correct	0 ms	21552 KB	Output is correct
9	Correct	0 ms	21552 KB	Output is correct
10	Correct	0 ms	21552 KB	Output is correct
11	Correct	0 ms	21552 KB	Output is correct
12	Correct	0 ms	21552 KB	Output is correct
13	Correct	0 ms	21552 KB	Output is correct
14	Correct	0 ms	21552 KB	Output is correct
15	Correct	0 ms	21552 KB	Output is correct
16	Correct	3 ms	21552 KB	Output is correct
17	Correct	0 ms	21552 KB	Output is correct
18	Correct	0 ms	21552 KB	Output is correct
19	Correct	0 ms	21552 KB	Output is correct
20	Correct	0 ms	21552 KB	Output is correct
21	Correct	3 ms	21552 KB	Output is correct
22	Correct	3 ms	21552 KB	Output is correct
23	Correct	0 ms	21552 KB	Output is correct
24	Correct	0 ms	21552 KB	Output is correct
25	Correct	0 ms	21552 KB	Output is correct
26	Correct	3 ms	21552 KB	Output is correct
27	Correct	29 ms	21552 KB	Output is correct
28	Correct	16 ms	21552 KB	Output is correct
29	Correct	26 ms	21552 KB	Output is correct
30	Correct	16 ms	21552 KB	Output is correct
31	Correct	29 ms	21552 KB	Output is correct
32	Correct	13 ms	21552 KB	Output is correct
33	Correct	26 ms	21552 KB	Output is correct
34	Correct	23 ms	21552 KB	Output is correct
35	Incorrect	13 ms	21552 KB	Output isn't correct
36	Halted	0 ms	0 KB	-

Subtask #4
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	21552 KB	Output is correct
2	Correct	0 ms	21552 KB	Output is correct
3	Correct	0 ms	21552 KB	Output is correct
4	Correct	3 ms	21552 KB	Output is correct
5	Correct	0 ms	21552 KB	Output is correct
6	Correct	0 ms	21552 KB	Output is correct
7	Correct	0 ms	21552 KB	Output is correct
8	Correct	0 ms	21552 KB	Output is correct
9	Correct	0 ms	21552 KB	Output is correct
10	Correct	0 ms	21552 KB	Output is correct
11	Correct	0 ms	21552 KB	Output is correct
12	Correct	0 ms	21552 KB	Output is correct
13	Correct	0 ms	21552 KB	Output is correct
14	Correct	0 ms	21552 KB	Output is correct
15	Correct	0 ms	21552 KB	Output is correct
16	Correct	3 ms	21552 KB	Output is correct
17	Correct	0 ms	21552 KB	Output is correct
18	Correct	0 ms	21552 KB	Output is correct
19	Correct	0 ms	21552 KB	Output is correct
20	Correct	0 ms	21552 KB	Output is correct
21	Correct	3 ms	21552 KB	Output is correct
22	Correct	3 ms	21552 KB	Output is correct
23	Correct	0 ms	21552 KB	Output is correct
24	Correct	0 ms	21552 KB	Output is correct
25	Correct	0 ms	21552 KB	Output is correct
26	Correct	3 ms	21552 KB	Output is correct
27	Correct	29 ms	21552 KB	Output is correct
28	Correct	16 ms	21552 KB	Output is correct
29	Correct	26 ms	21552 KB	Output is correct
30	Correct	16 ms	21552 KB	Output is correct
31	Correct	29 ms	21552 KB	Output is correct
32	Correct	13 ms	21552 KB	Output is correct
33	Correct	26 ms	21552 KB	Output is correct
34	Correct	23 ms	21552 KB	Output is correct
35	Incorrect	13 ms	21552 KB	Output isn't correct
36	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	21552 KB	Output is correct
2	Correct	0 ms	21552 KB	Output is correct
3	Correct	0 ms	21552 KB	Output is correct
4	Correct	3 ms	21552 KB	Output is correct
5	Correct	0 ms	21552 KB	Output is correct
6	Correct	0 ms	21552 KB	Output is correct
7	Correct	0 ms	21552 KB	Output is correct
8	Correct	0 ms	21552 KB	Output is correct
9	Correct	0 ms	21552 KB	Output is correct
10	Correct	0 ms	21552 KB	Output is correct
11	Correct	0 ms	21552 KB	Output is correct
12	Correct	0 ms	21552 KB	Output is correct
13	Correct	0 ms	21552 KB	Output is correct
14	Correct	0 ms	21552 KB	Output is correct
15	Correct	0 ms	21552 KB	Output is correct
16	Correct	3 ms	21552 KB	Output is correct
17	Correct	0 ms	21552 KB	Output is correct
18	Correct	0 ms	21552 KB	Output is correct
19	Correct	0 ms	21552 KB	Output is correct
20	Correct	0 ms	21552 KB	Output is correct
21	Correct	3 ms	21552 KB	Output is correct
22	Correct	3 ms	21552 KB	Output is correct
23	Correct	0 ms	21552 KB	Output is correct
24	Correct	0 ms	21552 KB	Output is correct
25	Correct	0 ms	21552 KB	Output is correct
26	Correct	3 ms	21552 KB	Output is correct
27	Correct	29 ms	21552 KB	Output is correct
28	Correct	16 ms	21552 KB	Output is correct
29	Correct	26 ms	21552 KB	Output is correct
30	Correct	16 ms	21552 KB	Output is correct
31	Correct	29 ms	21552 KB	Output is correct
32	Correct	13 ms	21552 KB	Output is correct
33	Correct	26 ms	21552 KB	Output is correct
34	Correct	23 ms	21552 KB	Output is correct
35	Incorrect	13 ms	21552 KB	Output isn't correct
36	Halted	0 ms	0 KB	-

Submission #20925

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 30.0 / 30.0

Subtask #3 0 / 10.0

Subtask #4 0 / 25.0

Subtask #5 0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
30.0 / 30.0

Subtask #3
0 / 10.0

Subtask #4
0 / 25.0

Subtask #5
0 / 20.0