oj.uz

Submission #1112527

# Submission time Handle Problem Language Result Execution time Memory
1112527 2024-11-14T09:32:05 Z starchan Catfish Farm (IOI22_fish) C++17
100 / 100
 163 ms 51164 KB 
#include "fish.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define in array<int, 2>
#define iln array<ll, 2>
#define pb push_back
#define pob pop_back

const ll INF = 1e17;

ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w)
{
	vector<in> loc[n+1];//loc[i][k] = kth from bottom in ith column.
	for(auto &s: x) s++;
	for(auto &s: y) s++;
	for(int i = 1; i <= n; i++)
		loc[i].pb({0, 0});
	for(int i = 0; i < m; i++)
		loc[x[i]].pb({y[i], w[i]});

	//pre-processing done.
	
	vector<array<ll, 4>> dp[n+1];
	vector<ll> pref[n+1];
	ll DP[n+1];

	for(int i = 1; i <= n; i++)
	{
		sort(loc[i].begin(), loc[i].end()); loc[i].pb({n+1, 0});
		pref[i].assign(loc[i].size(), 0ll);
		for(int j = 1; j < loc[i].size(); j++)
			pref[i][j] = pref[i][j-1] + loc[i][j][1];
		dp[i].resize(loc[i].size());
	}

	DP[0] = DP[1] = 0;

	for(int i = 2; i <= n; i++)
	{
		dp[i][0][0] = dp[i-1][0][0];

		int D = loc[i-1].size()-1; ll Val = dp[i-1][D][0] + pref[i].back();

		for(int j = loc[i].size()-1; j >= 0; j--)
		{
			while((D > 0) && (loc[i-1][D-1][0] > loc[i][j][0]))
			{
				D--;
				Val = max(Val, dp[i-1][D][0] + pref[i][j]);
			}
			if(j)
				dp[i][j][3] = Val - pref[i][j-1];
			else
				dp[i][j][3] = Val;
		}

		dp[i][0][0] = max(dp[i][0][0], dp[i][0][3]);

		int Dd = 0; ll VAL = -INF;

		for(int j = 1; j < loc[i].size(); j++)
		{
			dp[i][j][1] = dp[i-1][0][0];
			while(((Dd+1) < loc[i-1].size()) && (loc[i-1][Dd+1][0] < loc[i][j][0]))
			{
				Dd++;
				VAL = max(VAL, dp[i-1][Dd][2] - pref[i-1][Dd-1]);
			}
			dp[i][j][2] = max(DP[i-2], VAL) + pref[i-1][Dd];
		}
		DP[i] = dp[i][0][0];
		for(int j = 1; j < loc[i].size(); j++)
		{
			dp[i][j][0] = max(max(dp[i][j][1], dp[i][j][2]), dp[i][j][3]);
			DP[i] = max(DP[i], dp[i][j][0]);
		}
	}

	return DP[n];
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for(int j = 1; j < loc[i].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~
fish.cpp:62:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for(int j = 1; j < loc[i].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~
fish.cpp:65:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |    while(((Dd+1) < loc[i-1].size()) && (loc[i-1][Dd+1][0] < loc[i][j][0]))
      |           ~~~~~~~^~~~~~~~~~~~~~~~~
fish.cpp:73:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |   for(int j = 1; j < loc[i].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 27068 KB Output is correct
2 Correct 63 ms 30996 KB Output is correct
3 Correct 34 ms 22352 KB Output is correct
4 Correct 31 ms 22352 KB Output is correct
5 Correct 118 ms 49704 KB Output is correct
6 Correct 128 ms 51164 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 73 ms 34260 KB Output is correct
3 Correct 86 ms 39860 KB Output is correct
4 Correct 48 ms 27068 KB Output is correct
5 Correct 61 ms 30928 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 508 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 37 ms 22344 KB Output is correct
11 Correct 28 ms 22236 KB Output is correct
12 Correct 50 ms 27068 KB Output is correct
13 Correct 57 ms 30896 KB Output is correct
14 Correct 50 ms 27068 KB Output is correct
15 Correct 54 ms 30112 KB Output is correct
16 Correct 50 ms 27100 KB Output is correct
17 Correct 55 ms 30152 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 22352 KB Output is correct
2 Correct 29 ms 22352 KB Output is correct
3 Correct 42 ms 24648 KB Output is correct
4 Correct 41 ms 25416 KB Output is correct
5 Correct 75 ms 30792 KB Output is correct
6 Correct 62 ms 30232 KB Output is correct
7 Correct 63 ms 30792 KB Output is correct
8 Correct 68 ms 30772 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 592 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 592 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 2 ms 592 KB Output is correct
17 Correct 15 ms 4432 KB Output is correct
18 Correct 14 ms 4688 KB Output is correct
19 Correct 15 ms 4532 KB Output is correct
20 Correct 17 ms 4656 KB Output is correct
21 Correct 15 ms 4688 KB Output is correct
22 Correct 28 ms 8800 KB Output is correct
23 Correct 4 ms 1104 KB Output is correct
24 Correct 9 ms 3320 KB Output is correct
25 Correct 1 ms 592 KB Output is correct
26 Correct 4 ms 1104 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 592 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 2 ms 592 KB Output is correct
17 Correct 15 ms 4432 KB Output is correct
18 Correct 14 ms 4688 KB Output is correct
19 Correct 15 ms 4532 KB Output is correct
20 Correct 17 ms 4656 KB Output is correct
21 Correct 15 ms 4688 KB Output is correct
22 Correct 28 ms 8800 KB Output is correct
23 Correct 4 ms 1104 KB Output is correct
24 Correct 9 ms 3320 KB Output is correct
25 Correct 1 ms 592 KB Output is correct
26 Correct 4 ms 1104 KB Output is correct
27 Correct 3 ms 1104 KB Output is correct
28 Correct 69 ms 20868 KB Output is correct
29 Correct 106 ms 28620 KB Output is correct
30 Correct 91 ms 28520 KB Output is correct
31 Correct 93 ms 28488 KB Output is correct
32 Correct 88 ms 29008 KB Output is correct
33 Correct 95 ms 28492 KB Output is correct
34 Correct 102 ms 28488 KB Output is correct
35 Correct 34 ms 11512 KB Output is correct
36 Correct 93 ms 29000 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 22352 KB Output is correct
2 Correct 29 ms 22352 KB Output is correct
3 Correct 42 ms 24648 KB Output is correct
4 Correct 41 ms 25416 KB Output is correct
5 Correct 75 ms 30792 KB Output is correct
6 Correct 62 ms 30232 KB Output is correct
7 Correct 63 ms 30792 KB Output is correct
8 Correct 68 ms 30772 KB Output is correct
9 Correct 59 ms 30536 KB Output is correct
10 Correct 45 ms 20440 KB Output is correct
11 Correct 100 ms 40656 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 30 ms 22168 KB Output is correct
19 Correct 29 ms 22344 KB Output is correct
20 Correct 28 ms 22352 KB Output is correct
21 Correct 29 ms 22352 KB Output is correct
22 Correct 73 ms 31572 KB Output is correct
23 Correct 104 ms 40796 KB Output is correct
24 Correct 108 ms 41288 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 27068 KB Output is correct
2 Correct 63 ms 30996 KB Output is correct
3 Correct 34 ms 22352 KB Output is correct
4 Correct 31 ms 22352 KB Output is correct
5 Correct 118 ms 49704 KB Output is correct
6 Correct 128 ms 51164 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 73 ms 34260 KB Output is correct
9 Correct 86 ms 39860 KB Output is correct
10 Correct 48 ms 27068 KB Output is correct
11 Correct 61 ms 30928 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 508 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 37 ms 22344 KB Output is correct
17 Correct 28 ms 22236 KB Output is correct
18 Correct 50 ms 27068 KB Output is correct
19 Correct 57 ms 30896 KB Output is correct
20 Correct 50 ms 27068 KB Output is correct
21 Correct 54 ms 30112 KB Output is correct
22 Correct 50 ms 27100 KB Output is correct
23 Correct 55 ms 30152 KB Output is correct
24 Correct 28 ms 22352 KB Output is correct
25 Correct 29 ms 22352 KB Output is correct
26 Correct 42 ms 24648 KB Output is correct
27 Correct 41 ms 25416 KB Output is correct
28 Correct 75 ms 30792 KB Output is correct
29 Correct 62 ms 30232 KB Output is correct
30 Correct 63 ms 30792 KB Output is correct
31 Correct 68 ms 30772 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 504 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 592 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 592 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 336 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 2 ms 592 KB Output is correct
48 Correct 15 ms 4432 KB Output is correct
49 Correct 14 ms 4688 KB Output is correct
50 Correct 15 ms 4532 KB Output is correct
51 Correct 17 ms 4656 KB Output is correct
52 Correct 15 ms 4688 KB Output is correct
53 Correct 28 ms 8800 KB Output is correct
54 Correct 4 ms 1104 KB Output is correct
55 Correct 9 ms 3320 KB Output is correct
56 Correct 1 ms 592 KB Output is correct
57 Correct 4 ms 1104 KB Output is correct
58 Correct 3 ms 1104 KB Output is correct
59 Correct 69 ms 20868 KB Output is correct
60 Correct 106 ms 28620 KB Output is correct
61 Correct 91 ms 28520 KB Output is correct
62 Correct 93 ms 28488 KB Output is correct
63 Correct 88 ms 29008 KB Output is correct
64 Correct 95 ms 28492 KB Output is correct
65 Correct 102 ms 28488 KB Output is correct
66 Correct 34 ms 11512 KB Output is correct
67 Correct 93 ms 29000 KB Output is correct
68 Correct 59 ms 30536 KB Output is correct
69 Correct 45 ms 20440 KB Output is correct
70 Correct 100 ms 40656 KB Output is correct
71 Correct 1 ms 336 KB Output is correct
72 Correct 1 ms 336 KB Output is correct
73 Correct 1 ms 436 KB Output is correct
74 Correct 1 ms 336 KB Output is correct
75 Correct 1 ms 336 KB Output is correct
76 Correct 1 ms 336 KB Output is correct
77 Correct 30 ms 22168 KB Output is correct
78 Correct 29 ms 22344 KB Output is correct
79 Correct 28 ms 22352 KB Output is correct
80 Correct 29 ms 22352 KB Output is correct
81 Correct 73 ms 31572 KB Output is correct
82 Correct 104 ms 40796 KB Output is correct
83 Correct 108 ms 41288 KB Output is correct
84 Correct 132 ms 47416 KB Output is correct
85 Correct 125 ms 49280 KB Output is correct
86 Correct 136 ms 48456 KB Output is correct
87 Correct 147 ms 50760 KB Output is correct
88 Correct 1 ms 336 KB Output is correct
89 Correct 163 ms 50764 KB Output is correct
90 Correct 135 ms 49756 KB Output is correct
91 Correct 137 ms 49736 KB Output is correct