Submission #721388

#	Time	Username	Problem	Language	Result	Execution time	Memory
721388		bLIC	Catfish Farm (IOI22_fish)	C++17	3 / 100	101 ms	9580 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
  ll sum[N]{};
  for (int i = 0;i<M;i++){
    sum[X[i]]+=W[i]*1ll;
  }
  ll dp[N][2];
  // memset(dp, 0, sizeof(dp));
  dp[0][0] = 0;
  dp[0][1] = sum[0];
  ll ans = dp[0][1];
  for (int i = 1;i<N;i++){
    dp[i][0] = max(dp[i-1][1], dp[i-1][0]);
    dp[i][1] = dp[i-1][0]+sum[i];
    ans = max(ans, max(dp[i][0], dp[i][1]));
  }
  for (int i = 0;i<N;i++) assert(sum[i]<=ans);
  return ans;
}

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