oj.uz

Submission #866561

# Submission time Handle Problem Language Result Execution time Memory
866561 2023-10-26T11:56:56 Z vjudge1 Catfish Farm (IOI22_fish) C++17
3 / 100
 1000 ms 25544 KB 
#include "fish.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long// !
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define F first
#define S second
const int MAXN = 1e5 + 3;

ll max_weights(int n, int m, vector<int> X, std::vector<int> Y, vector<int> W) {
	// dp[i][j], for i'th column just before the j'th element
	vector<pair<int, int>> pos[MAXN];
	for (int i = 0; i < m; i++){
		pos[X[i]+1].push_back({Y[i], W[i]});
	}
	vector<ll> dp[MAXN];
	for (int i = 0; i <= n; i++){
		pos[i].push_back({MAXN, 0});
		sort(all(pos[i]));
		dp[i].resize(sz(pos[i]), 0ll);
	}
	for (int i = 1; i <= n; i++){
		for (int j = 0; j < sz(dp[i]); j++){
			ll& me = dp[i][j];
			ll cnt = 0;
			for (int k = sz(dp[i - 1]) - 1; k >= 0; k--){
				if (pos[i - 1][k].F <= pos[i][j].F - 1) cnt += pos[i - 1][k].S;
				me = max(me, cnt + dp[i-1][k]);
			}
			if (i == n){
				int p = sz(pos[i]) - 1;
				ll cnt2 = 0;
				cnt = 0;
				for (int k = j; k < sz(pos[i]); k++) cnt2 += pos[i][k].S;

				for (int k = sz(dp[i - 1]) - 1; k >= 0; k--){

					if (pos[i - 1][k].F <= pos[i][j].F - 1) cnt += pos[i - 1][k].S;
					while (p >= j && pos[i - 1][k].F - 1 < pos[i][p].F){
						cnt2 -= pos[i][p].S;
						p--;
					}

					me = max(me, cnt2 + cnt + dp[i-1][k]);
				}
			}
		}
	}
	ll ans = 0;
	for (auto it : dp[n]){
		ans = max(ans, it);
	}
	for (int i = 0; i < n/2; i++){
		swap(pos[i], pos[n-i]);
	}
	for (int i = 0; i <= n; i++){
		dp[i].resize(sz(pos[i]), 0ll);
		dp[i].assign(sz(pos[i]), 0ll);
	}
	for (int i = 1; i <= n; i++){
		for (int j = 0; j < sz(dp[i]); j++){
			ll& me = dp[i][j];
			ll cnt = 0;
			for (int k = sz(dp[i - 1]) - 1; k >= 0; k--){
				if (pos[i - 1][k].F <= pos[i][j].F - 1) cnt += pos[i - 1][k].S;
				me = max(me, cnt + dp[i-1][k]);
			}
			if (i == n){
				int p = sz(pos[i]) - 1;
				ll cnt2 = 0;
				cnt = 0;
				for (int k = j; k < sz(pos[i]); k++) cnt2 += pos[i][k].S;

				for (int k = sz(dp[i - 1]) - 1; k >= 0; k--){

					if (pos[i - 1][k].F <= pos[i][j].F - 1) cnt += pos[i - 1][k].S;
					while (p >= j && pos[i - 1][k].F - 1 < pos[i][p].F){
						cnt2 -= pos[i][p].S;
						p--;
					}

					me = max(me, cnt2 + cnt + dp[i-1][k]);
				}
			}
		}
	}
	for (auto it : dp[n]){
		ans = max(ans, it);
	}
	return ans;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 14532 KB Output is correct
2 Correct 44 ms 16048 KB Output is correct
3 Correct 14 ms 11356 KB Output is correct
4 Correct 14 ms 11356 KB Output is correct
5 Correct 109 ms 25544 KB Output is correct
6 Correct 119 ms 24912 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4956 KB Output is correct
2 Execution timed out 1093 ms 17088 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 11356 KB Output is correct
2 Correct 15 ms 11392 KB Output is correct
3 Incorrect 29 ms 11868 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Incorrect 3 ms 4956 KB 1st lines differ - on the 1st token, expected: '8866', found: '16621'
6 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Incorrect 3 ms 4956 KB 1st lines differ - on the 1st token, expected: '8866', found: '16621'
6 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Incorrect 3 ms 4956 KB 1st lines differ - on the 1st token, expected: '8866', found: '16621'
6 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 11356 KB Output is correct
2 Correct 15 ms 11392 KB Output is correct
3 Incorrect 29 ms 11868 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 14532 KB Output is correct
2 Correct 44 ms 16048 KB Output is correct
3 Correct 14 ms 11356 KB Output is correct
4 Correct 14 ms 11356 KB Output is correct
5 Correct 109 ms 25544 KB Output is correct
6 Correct 119 ms 24912 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Execution timed out 1093 ms 17088 KB Time limit exceeded
9 Halted 0 ms 0 KB -