oj.uz

답안 #701657

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
701657 2023-02-21T18:04:57 Z n1k 메기 농장 (IOI22_fish) C++17
0 / 100
 1000 ms 2097152 KB 
#include <bits/stdc++.h>

#define ll long long
#define vt vector
#define pb push_back
#define ar array
#define all(x) (x).begin(), (x).end()
#define sz(x) (x).size()

using namespace std;

/*
 ## TAKE IT EASY ##
 1. simplify
 2. add new elements
 3. brute force solution
 4. optimize
 5. start implementing
*/

// --- templates ---

// --- code ---

//const int N = 300 + 10;
const int N = 100000 + 10;

ll dp[N][2][10];

ll max_weights(int n, int m, vt<int> X, vt<int> Y, vt<int> W){
	memset(dp, 0, sizeof dp);

	int h = n + 5;

	vt<vt<ll>> a(n + 5, vt<ll>(h));

	for(int i = 0; i < m; i++){
		a[X[i]][Y[i] + 1] = W[i];
	}

	for(int i = 0; i < n; i++){
		for(int j = 1; j < h; j++){
			a[i][j] += a[i][j - 1];
		}
	}

	for(int i = 0; i < n; i++){
		for(int flow = 0; flow < 2; flow++){
			for(int h1 = 0; h1 < h; h1++){
				for(int h2 = 0; h2 < (flow ? h : h1 + 1); h2++){

					int nflow = h1 <= h2;
					ll l = 0, r = a[i + 1][h2], sub = a[i][min(h1, h2)];
					if(i == 0){
						dp[i][nflow][h2] = max(dp[i][nflow][h2], r);
					}else{
						l = max((ll)0, a[i - 1][h2] - a[i - 1][h1]);
						dp[i][nflow][h2] = max(dp[i][nflow][h2], l + dp[i - 1][flow][h1] + r - sub);
					}
				}
			}
		}
	}

	ll ans = 0;

	for(int flow = 0; flow < 2; flow++){
		for(int h1 = 0; h1 < h; h1++){
			ans = max(ans, dp[n - 1][flow][h1]);
		}
	}

	return ans;
}

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1111 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15960 KB Output is correct
2 Runtime error 906 ms 2097152 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 752 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Incorrect 7 ms 15908 KB 1st lines differ - on the 1st token, expected: '7', found: '8'
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Incorrect 7 ms 15908 KB 1st lines differ - on the 1st token, expected: '7', found: '8'
3 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Incorrect 7 ms 15908 KB 1st lines differ - on the 1st token, expected: '7', found: '8'
3 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 752 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1111 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -