oj.uz

Submission #375351

# Submission time Handle Problem Language Result Execution time Memory
375351 2021-03-09T09:44:38 Z astoria Painting Walls (APIO20_paint) C++14
12 / 100
 84 ms 17004 KB 
#include "bits/stdc++.h"
#include "paint.h"
using namespace std;
 
int minimumInstructions(int N, int M, int K, std::vector<int> C, std::vector<int> A, std::vector<std::vector<int>> B){
	vector<int> f[K+5]; //for the colour i, who can do?
	for(int i=0; i<M; i++){
		for(int j=0; j<A[i]; j++){
			int col = B[i][j];
			f[col].push_back(i);
		}
	}
	
	int lng[N+5];
	memset(lng,-1,sizeof(lng));
	for(int j : f[C[0]]) lng[0]=1;
	lng[0]=max(lng[0],0);
	
	for(int i=1; i<N; i++){
		for(int j : f[C[i]]){
			lng[i] = 1;
			int lst = j-1; if(lst<0) lst+=M;
			if(!f[C[i-1]].empty() && f[C[i-1]].front()==lst) lng[i] += lng[i-1];
		}
		lng[i]=max(lng[i],0);
	}
	
	int dp[N+5];
	multiset<int> mns; mns.insert(0);
	for(int i=0; i<N; i++){
		if(lng[i]<M) dp[i]=1e9;
		else dp[i]=(*mns.begin())+1;
		mns.insert(dp[i]);
		if(mns.size()>M&&i>=M) mns.erase(mns.find(dp[i-M]));
		else if(mns.size()>M) mns.erase(0);
	}
	if(dp[N-1]>=1e6) return -1;
	return dp[N-1];
}

Compilation message

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:16:10: warning: unused variable 'j' [-Wunused-variable]
   16 |  for(int j : f[C[0]]) lng[0]=1;
      |          ^
paint.cpp:34:16: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |   if(mns.size()>M&&i>=M) mns.erase(mns.find(dp[i-M]));
      |      ~~~~~~~~~~^~
paint.cpp:35:21: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |   else if(mns.size()>M) mns.erase(0);
      |           ~~~~~~~~~~^~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 3 ms 2668 KB Output is correct
14 Correct 2 ms 2668 KB Output is correct
15 Correct 2 ms 2668 KB Output is correct
16 Correct 2 ms 2668 KB Output is correct
17 Correct 3 ms 2796 KB Output is correct
18 Correct 2 ms 2796 KB Output is correct
19 Correct 2 ms 2668 KB Output is correct
20 Correct 2 ms 2796 KB Output is correct
21 Correct 2 ms 2796 KB Output is correct
22 Correct 26 ms 7168 KB Output is correct
23 Correct 27 ms 7168 KB Output is correct
24 Correct 27 ms 7148 KB Output is correct
25 Correct 3 ms 620 KB Output is correct
26 Correct 3 ms 620 KB Output is correct
27 Correct 4 ms 620 KB Output is correct
28 Correct 4 ms 620 KB Output is correct
29 Correct 4 ms 620 KB Output is correct
30 Correct 4 ms 620 KB Output is correct
31 Correct 13 ms 4204 KB Output is correct
32 Correct 13 ms 4224 KB Output is correct
33 Correct 13 ms 4204 KB Output is correct
34 Correct 13 ms 4204 KB Output is correct
35 Correct 13 ms 4204 KB Output is correct
36 Correct 13 ms 4204 KB Output is correct
37 Correct 38 ms 7788 KB Output is correct
38 Correct 34 ms 7788 KB Output is correct
39 Correct 34 ms 7788 KB Output is correct
40 Correct 13 ms 1900 KB Output is correct
41 Correct 9 ms 1260 KB Output is correct
42 Correct 17 ms 2028 KB Output is correct
43 Correct 11 ms 1664 KB Output is correct
44 Correct 10 ms 1388 KB Output is correct
45 Correct 16 ms 2028 KB Output is correct
46 Correct 72 ms 15724 KB Output is correct
47 Correct 44 ms 9836 KB Output is correct
48 Correct 47 ms 13164 KB Output is correct
49 Correct 59 ms 13164 KB Output is correct
50 Correct 59 ms 12780 KB Output is correct
51 Correct 51 ms 9452 KB Output is correct
52 Correct 14 ms 2028 KB Output is correct
53 Correct 15 ms 2156 KB Output is correct
54 Correct 17 ms 2028 KB Output is correct
55 Correct 17 ms 2028 KB Output is correct
56 Correct 16 ms 2028 KB Output is correct
57 Correct 16 ms 2028 KB Output is correct
58 Correct 82 ms 16876 KB Output is correct
59 Correct 80 ms 17004 KB Output is correct
60 Correct 84 ms 16876 KB Output is correct
61 Correct 81 ms 16876 KB Output is correct
62 Correct 80 ms 16876 KB Output is correct
63 Correct 84 ms 16876 KB Output is correct
64 Correct 84 ms 15852 KB Output is correct
65 Correct 82 ms 15724 KB Output is correct
66 Correct 79 ms 15724 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 3 ms 2668 KB Output is correct
14 Correct 2 ms 2668 KB Output is correct
15 Correct 2 ms 2668 KB Output is correct
16 Correct 2 ms 2668 KB Output is correct
17 Correct 3 ms 2796 KB Output is correct
18 Correct 2 ms 2796 KB Output is correct
19 Correct 2 ms 2668 KB Output is correct
20 Correct 2 ms 2796 KB Output is correct
21 Correct 2 ms 2796 KB Output is correct
22 Incorrect 1 ms 364 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -