oj.uz

Submission #1032075

# Submission time Handle Problem Language Result Execution time Memory
1032075 2024-07-23T10:51:41 Z 42kangaroo Catfish Farm (IOI22_fish) C++17
9 / 100
 92 ms 28752 KB 
#include "fish.h"
#include "bits/stdc++.h"

#include <vector>

struct CaF {
	long long x, w;
};

using ll = long long;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
	using namespace std;
	vector<vector<CaF>> fi(N);
	for (int i = 0; i < N; ++i) {
		fi[i].push_back({-1, 0});
	}
	for (int i = 0; i < M; ++i) {
		fi[X[i]].push_back({Y[i], W[i]});
	}
	for (int i = 0; i < N; ++i) {
		sort(fi[i].begin(), fi[i].end(), [](const CaF &l, const CaF &r) { return l.x < r.x; });
	}
	vector<ll> dpU(fi[0].size()), dpD(fi[0].size());
	for (int i = 1; i < N; ++i) {
		vector<ll> dpNU(fi[i].size()), dpND(fi[i].size());
		int laP = 0;
		ll su = 0;
		ll beSu = 1e9;
		int be = 0;
		for (int j = 0; j < fi[i].size(); ++j) {
			while (laP < fi[i - 1].size() && (j == fi[i].size() - 1 || fi[i - 1][laP].x < fi[i][j + 1].x)) {
				su += fi[i - 1][laP].w;
				if (dpU[laP] - su > dpU[be] - beSu) {
					be = laP;
					beSu = su;
				}
				laP++;
			}
			dpNU[j] = dpU[be] + su - beSu;
		}
		laP = fi[i - 1].size() - 1;
		su = 0;
		beSu = 0;
		be = fi[i - 1].size() - 1;
		for (int j = fi[i].size() - 1; j >= 0; --j) {
			while (laP >= 0 && fi[i - 1][laP].x > fi[i][j].x) {
				laP--;
				if (dpD[laP] - su > dpD[be] - beSu) {
					be = laP;
					beSu = su;
				}
			}
			dpND[j] = max(dpD[be] + su - beSu, dpNU[j]);
			su += fi[i][j].w;
		}
		dpD = dpND;
		dpU = dpNU;
	}
	return max(*max_element(dpU.begin(), dpU.end()), *max_element(dpD.begin(), dpD.end()));
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:32:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<CaF>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for (int j = 0; j < fi[i].size(); ++j) {
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:33:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<CaF>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    while (laP < fi[i - 1].size() && (j == fi[i].size() - 1 || fi[i - 1][laP].x < fi[i][j + 1].x)) {
      |           ~~~~^~~~~~~~~~~~~~~~~~
fish.cpp:33:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<CaF>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    while (laP < fi[i - 1].size() && (j == fi[i].size() - 1 || fi[i - 1][laP].x < fi[i][j + 1].x)) {
      |                                      ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 10944 KB Output is correct
2 Correct 35 ms 12984 KB Output is correct
3 Correct 10 ms 5724 KB Output is correct
4 Correct 10 ms 5672 KB Output is correct
5 Correct 92 ms 27180 KB Output is correct
6 Correct 88 ms 28752 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 58 ms 16852 KB Output is correct
3 Correct 63 ms 20148 KB Output is correct
4 Correct 30 ms 10944 KB Output is correct
5 Correct 35 ms 13004 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 13 ms 5976 KB Output is correct
11 Correct 10 ms 5724 KB Output is correct
12 Correct 30 ms 12416 KB Output is correct
13 Correct 37 ms 14540 KB Output is correct
14 Correct 30 ms 11044 KB Output is correct
15 Correct 34 ms 12992 KB Output is correct
16 Correct 31 ms 11016 KB Output is correct
17 Correct 33 ms 12220 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 5980 KB Output is correct
2 Correct 10 ms 5724 KB Output is correct
3 Incorrect 24 ms 8792 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '3655092595137'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Incorrect 0 ms 440 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '7818664569'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Incorrect 0 ms 440 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '7818664569'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Incorrect 0 ms 440 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '7818664569'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 5980 KB Output is correct
2 Correct 10 ms 5724 KB Output is correct
3 Incorrect 24 ms 8792 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '3655092595137'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 10944 KB Output is correct
2 Correct 35 ms 12984 KB Output is correct
3 Correct 10 ms 5724 KB Output is correct
4 Correct 10 ms 5672 KB Output is correct
5 Correct 92 ms 27180 KB Output is correct
6 Correct 88 ms 28752 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 58 ms 16852 KB Output is correct
9 Correct 63 ms 20148 KB Output is correct
10 Correct 30 ms 10944 KB Output is correct
11 Correct 35 ms 13004 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 13 ms 5976 KB Output is correct
17 Correct 10 ms 5724 KB Output is correct
18 Correct 30 ms 12416 KB Output is correct
19 Correct 37 ms 14540 KB Output is correct
20 Correct 30 ms 11044 KB Output is correct
21 Correct 34 ms 12992 KB Output is correct
22 Correct 31 ms 11016 KB Output is correct
23 Correct 33 ms 12220 KB Output is correct
24 Correct 12 ms 5980 KB Output is correct
25 Correct 10 ms 5724 KB Output is correct
26 Incorrect 24 ms 8792 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '3655092595137'
27 Halted 0 ms 0 KB -