oj.uz

Submission #47045

# Submission time Handle Problem Language Result Execution time Memory
47045 2018-04-27T03:36:31 Z wzy K blocks (IZhO14_blocks) C++11
100 / 100
 455 ms 122864 KB 
#include <bits/stdc++.h>
using namespace std;
int n , k , dp[100005][105] , v[100005] , opt[100005][105] , pointer[105];

stack< pair<int,int> > s[105];



int main(){
	scanf("%d%d" , &n , &k);
	for(int i = 1 ; i<=n ;i ++) scanf("%d" , &v[i]);
	for(int i = 0 ; i  <= n; i ++)
		for(int j = 0 ; j <= k ; j++) opt[i][j] = 1000000009 , pointer[j] = 0 , dp[i][j] = 0;
	for(int j = 1 ; j <= k ; j++)
		for(int i = j ; i <= n; i++){
			if(j == 1){
				dp[i][j] = max(dp[i-1][j] , v[i]);
			}		
			else{
				int currminimal = dp[i-1][j-1];
				while(s[j].size() && s[j].top().second <= v[i]){
					currminimal = min(currminimal , s[j].top().first);
					s[j].pop();
					pointer[j]--;
				}
				dp[i][j] = min(currminimal + v[i] , opt[pointer[j]][j]);
				s[j].push(pair<int,int>(currminimal, v[i]));
				opt[pointer[j] + 1][j] = min(opt[pointer[j]][j] , currminimal + v[i]);
				pointer[j]++;
			}
		}
		printf("%d\n" , dp[n][k]);

}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:14:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int j = 1 ; j <= k ; j++)
  ^~~
blocks.cpp:32:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   printf("%d\n" , dp[n][k]);
   ^~~~~~
blocks.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d" , &n , &k);
  ~~~~~^~~~~~~~~~~~~~~~~~
blocks.cpp:11:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1 ; i<=n ;i ++) scanf("%d" , &v[i]);
                              ~~~~~^~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 624 KB Output is correct
3 Correct 2 ms 624 KB Output is correct
4 Correct 2 ms 624 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 828 KB Output is correct
8 Correct 2 ms 828 KB Output is correct
9 Correct 2 ms 828 KB Output is correct
10 Correct 2 ms 828 KB Output is correct
11 Correct 2 ms 828 KB Output is correct
12 Correct 2 ms 916 KB Output is correct
13 Correct 2 ms 1020 KB Output is correct
14 Correct 2 ms 1020 KB Output is correct
15 Correct 2 ms 1020 KB Output is correct
16 Correct 2 ms 1020 KB Output is correct
17 Correct 2 ms 1020 KB Output is correct
18 Correct 2 ms 1020 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1020 KB Output is correct
2 Correct 2 ms 1020 KB Output is correct
3 Correct 2 ms 1020 KB Output is correct
4 Correct 2 ms 1020 KB Output is correct
5 Correct 2 ms 1020 KB Output is correct
6 Correct 2 ms 1020 KB Output is correct
7 Correct 2 ms 1020 KB Output is correct
8 Correct 2 ms 1020 KB Output is correct
9 Correct 2 ms 1020 KB Output is correct
10 Correct 2 ms 1020 KB Output is correct
11 Correct 2 ms 1020 KB Output is correct
12 Correct 2 ms 1020 KB Output is correct
13 Correct 2 ms 1020 KB Output is correct
14 Correct 2 ms 1020 KB Output is correct
15 Correct 2 ms 1020 KB Output is correct
16 Correct 2 ms 1020 KB Output is correct
17 Correct 2 ms 1020 KB Output is correct
18 Correct 2 ms 1020 KB Output is correct
19 Correct 2 ms 1020 KB Output is correct
20 Correct 2 ms 1020 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1020 KB Output is correct
2 Correct 2 ms 1020 KB Output is correct
3 Correct 2 ms 1020 KB Output is correct
4 Correct 2 ms 1020 KB Output is correct
5 Correct 2 ms 1020 KB Output is correct
6 Correct 2 ms 1020 KB Output is correct
7 Correct 2 ms 1040 KB Output is correct
8 Correct 2 ms 1040 KB Output is correct
9 Correct 2 ms 1040 KB Output is correct
10 Correct 2 ms 1040 KB Output is correct
11 Correct 2 ms 1040 KB Output is correct
12 Correct 2 ms 1040 KB Output is correct
13 Correct 2 ms 1064 KB Output is correct
14 Correct 2 ms 1068 KB Output is correct
15 Correct 2 ms 1076 KB Output is correct
16 Correct 2 ms 1076 KB Output is correct
17 Correct 2 ms 1076 KB Output is correct
18 Correct 2 ms 1088 KB Output is correct
19 Correct 2 ms 1092 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 9288 KB Output is correct
2 Correct 31 ms 38032 KB Output is correct
3 Correct 52 ms 38388 KB Output is correct
4 Correct 121 ms 38800 KB Output is correct
5 Correct 455 ms 85320 KB Output is correct
6 Correct 73 ms 86012 KB Output is correct
7 Correct 211 ms 86712 KB Output is correct
8 Correct 2 ms 86712 KB Output is correct
9 Correct 2 ms 86712 KB Output is correct
10 Correct 2 ms 86712 KB Output is correct
11 Correct 3 ms 86712 KB Output is correct
12 Correct 3 ms 86712 KB Output is correct
13 Correct 3 ms 86712 KB Output is correct
14 Correct 48 ms 86712 KB Output is correct
15 Correct 9 ms 86712 KB Output is correct
16 Correct 14 ms 86712 KB Output is correct
17 Correct 32 ms 86712 KB Output is correct
18 Correct 44 ms 86712 KB Output is correct
19 Correct 128 ms 86712 KB Output is correct
20 Correct 389 ms 88408 KB Output is correct
21 Correct 74 ms 89204 KB Output is correct
22 Correct 219 ms 90036 KB Output is correct
23 Correct 73 ms 90596 KB Output is correct
24 Correct 118 ms 91280 KB Output is correct
25 Correct 383 ms 92080 KB Output is correct
26 Correct 7 ms 92080 KB Output is correct
27 Correct 3 ms 92080 KB Output is correct
28 Correct 39 ms 92080 KB Output is correct
29 Correct 9 ms 92080 KB Output is correct
30 Correct 15 ms 92080 KB Output is correct
31 Correct 31 ms 92080 KB Output is correct
32 Correct 39 ms 92080 KB Output is correct
33 Correct 127 ms 92080 KB Output is correct
34 Correct 429 ms 122864 KB Output is correct
35 Correct 76 ms 122864 KB Output is correct
36 Correct 250 ms 122864 KB Output is correct
37 Correct 23 ms 122864 KB Output is correct
38 Correct 30 ms 122864 KB Output is correct
39 Correct 3 ms 122864 KB Output is correct
40 Correct 2 ms 122864 KB Output is correct
41 Correct 2 ms 122864 KB Output is correct
42 Correct 2 ms 122864 KB Output is correct