Submission #1056639

#	Time	Username	Problem	Language	Result	Execution time	Memory
1056639		dozer	Catfish Farm (IOI22_fish)	C++17	9 / 100	16 ms	10980 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define pii pair<int, int>
#define st first
#define nd second
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pb push_back
#define ll long long
#define LL node * 2
#define RR node * 2 + 1
#define MAXN 300005

const int modulo = 1e9 + 7;
const ll INF = 2e18 + 7;

ll dp[2][2][MAXN], arr[MAXN];

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
	int n = N, m = M;
	for (int i = 0; i <= n; i++) arr[i] = 0;

    for (int i = 0; i < m; i++) arr[X[i] + 1] = W[i];
    
    dp[1][0][n + 1] = arr[n];
	
    for (int i = n; i >= 1; i--){
    	for (int j = 0; j < 2; j++){
    		for (int k = 0; k < 2; k++){
    			dp[j][k][i] = 0;
    			for (int l = 0; l < 2; l++){
    				ll curr = dp[k][l][i + 1];
    				if ((j == 1 || l == 1) && k == 0) curr += arr[i - 1];
    				dp[j][k][i] = max(dp[j][k][i], curr);
    			}
    		}
    	}
    }

    return dp[0][0][1];
}

/*

int main() {
	fileio();
	int N, M;
	assert(2 == scanf("%d %d", &N, &M));

	std::vector<int> X(M), Y(M), W(M);
	for (int i = 0; i < M; ++i) {
		assert(3 == scanf("%d %d %d", &X[i], &Y[i], &W[i]));
	}

	long long result = max_weights(N, M, X, Y, W);
	printf("%lld\n", result);
	return 0;
}
*/

• Subtask 1: 0 / 3
• Subtask 2: 0 / 6
• Subtask 3: 9 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16