oj.uz

Submission #673732

# Submission time Handle Problem Language Result Execution time Memory
673732 2022-12-21T20:41:20 Z US3RN4M3 Catfish Farm (IOI22_fish) C++17
18 / 100
 138 ms 17484 KB 
#include"fish.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int mx = 100105;
vector<pair<int, int>> fish[mx];
ll bests[mx];
ll maxs[mx];
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
	for(int i = 0; i < M; i++) {
		fish[X[i] + 10].push_back({Y[i], W[i]});
	}
	for(int i = 10; i < N + 10; i++) {
		sort(fish[i].begin(), fish[i].end());
		fish[i].push_back({N + 10, 0});
		if(i < 10) continue;
		int cur = i;
		//if(i > 3)
		//bests[i - 3] = max(bests[i - 3], bests[i - 4]);
		//bests[i - 2] = max(bests[i - 2], bests[i - 3]);
		/* double dock */
		if(i != 10) {
			/* i am full */
			{
				ll cur_sum = 0;
				for(auto [pos, val] : fish[i - 1]) cur_sum += val;
				for(auto [pos, val] : fish[i + 1]) cur_sum += val;
				ll best_sum = cur_sum;
				int pp_idx = 0;
				int p_idx = 0;
				while(p_idx != fish[cur - 1].size()) {
					while(pp_idx != fish[cur - 2].size() && fish[cur - 2][pp_idx].first < fish[cur - 1][p_idx].first) {
						cur_sum += fish[cur - 2][pp_idx].second;
						best_sum = max(best_sum, cur_sum);
						pp_idx++;
					}
					cur_sum -= fish[cur - 1][p_idx].second;
					p_idx++;
				}
				//cout << i - 10 << ",1: " << cur_sum << endl;
				bests[i] = max(bests[i], maxs[i - 4] + best_sum);
			}
			//cout << bests[i] << " ";

			/* prev is full */
			{
				ll cur_sum = 0;
				for(auto [pos, val] : fish[i - 2]) cur_sum += val;
				for(auto [pos, val] : fish[i]) cur_sum += val;
				ll best_sum = cur_sum;
				int c_idx = 0;
				int n_idx = 0;
				while(c_idx != fish[cur].size()) {
					while(n_idx != fish[cur + 1].size() && fish[cur + 1][n_idx].first < fish[cur][c_idx].first) {
						cur_sum += fish[cur + 1][n_idx].second;
						best_sum = max(best_sum, cur_sum);
						n_idx++;
					}
					cur_sum -= fish[cur][c_idx].second;
					c_idx++;
				}
				//cout << i - 10 << ",2: " << cur_sum << endl;
				bests[i] = max(bests[i], maxs[i - 4] + best_sum);
			}
			//cout << bests[i] << " ";
		}
		/* single dock */
		{
			ll cur_sum = 0;
			for(auto [pos, val] : fish[i + 1]) cur_sum += val;
			bests[i] = max(bests[i], maxs[i - 2] + cur_sum);
			for(auto [pos, val] : fish[i - 1]) cur_sum += val;
			bests[i] = max(bests[i], maxs[i - 3] + cur_sum);
			//cout << i - 10 << ",3: " << cur_sum << endl;
		}
		//cout << bests[i] << endl;
		maxs[i] = max(bests[i], maxs[i - 1]);
	}
	//for(int i = 10; i < N + 10; i++) cout << bests[i] << " ";
	return bests[N + 9];
}

Compilation message

fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:31:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     while(p_idx != fish[cur - 1].size()) {
      |           ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:32:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |      while(pp_idx != fish[cur - 2].size() && fish[cur - 2][pp_idx].first < fish[cur - 1][p_idx].first) {
      |            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:53:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     while(c_idx != fish[cur].size()) {
      |           ~~~~~~^~~~~~~~~~~~~~~~~~~
fish.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |      while(n_idx != fish[cur + 1].size() && fish[cur + 1][n_idx].first < fish[cur][c_idx].first) {
      |            ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 9352 KB Output is correct
2 Correct 47 ms 10464 KB Output is correct
3 Correct 7 ms 7324 KB Output is correct
4 Correct 8 ms 7252 KB Output is correct
5 Correct 116 ms 16640 KB Output is correct
6 Correct 138 ms 17484 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 64 ms 11884 KB Output is correct
3 Correct 81 ms 13624 KB Output is correct
4 Correct 37 ms 9364 KB Output is correct
5 Correct 44 ms 10396 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 8 ms 7252 KB Output is correct
11 Correct 9 ms 7252 KB Output is correct
12 Correct 35 ms 9372 KB Output is correct
13 Correct 42 ms 10480 KB Output is correct
14 Correct 35 ms 9432 KB Output is correct
15 Correct 40 ms 10180 KB Output is correct
16 Correct 35 ms 9368 KB Output is correct
17 Correct 39 ms 10048 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7252 KB Output is correct
2 Correct 7 ms 7252 KB Output is correct
3 Correct 25 ms 8032 KB Output is correct
4 Correct 19 ms 8088 KB Output is correct
5 Correct 41 ms 9592 KB Output is correct
6 Correct 36 ms 9596 KB Output is correct
7 Correct 45 ms 9596 KB Output is correct
8 Correct 39 ms 9684 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2636 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2636 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2636 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7252 KB Output is correct
2 Correct 7 ms 7252 KB Output is correct
3 Correct 25 ms 8032 KB Output is correct
4 Correct 19 ms 8088 KB Output is correct
5 Correct 41 ms 9592 KB Output is correct
6 Correct 36 ms 9596 KB Output is correct
7 Correct 45 ms 9596 KB Output is correct
8 Correct 39 ms 9684 KB Output is correct
9 Incorrect 57 ms 9596 KB 1st lines differ - on the 1st token, expected: '99999', found: '74999'
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 9352 KB Output is correct
2 Correct 47 ms 10464 KB Output is correct
3 Correct 7 ms 7324 KB Output is correct
4 Correct 8 ms 7252 KB Output is correct
5 Correct 116 ms 16640 KB Output is correct
6 Correct 138 ms 17484 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 64 ms 11884 KB Output is correct
9 Correct 81 ms 13624 KB Output is correct
10 Correct 37 ms 9364 KB Output is correct
11 Correct 44 ms 10396 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 8 ms 7252 KB Output is correct
17 Correct 9 ms 7252 KB Output is correct
18 Correct 35 ms 9372 KB Output is correct
19 Correct 42 ms 10480 KB Output is correct
20 Correct 35 ms 9432 KB Output is correct
21 Correct 40 ms 10180 KB Output is correct
22 Correct 35 ms 9368 KB Output is correct
23 Correct 39 ms 10048 KB Output is correct
24 Correct 8 ms 7252 KB Output is correct
25 Correct 7 ms 7252 KB Output is correct
26 Correct 25 ms 8032 KB Output is correct
27 Correct 19 ms 8088 KB Output is correct
28 Correct 41 ms 9592 KB Output is correct
29 Correct 36 ms 9596 KB Output is correct
30 Correct 45 ms 9596 KB Output is correct
31 Correct 39 ms 9684 KB Output is correct
32 Incorrect 2 ms 2636 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
33 Halted 0 ms 0 KB -