Submission #833524

#	Time	Username	Problem	Language	Result	Execution time	Memory
833524		Trumling	Catfish Farm (IOI22_fish)	C++17	0 / 100	1172 ms	2097152 KiB

fish

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

#define F first
#define S second
#define all(x) x.begin(),x.end()
typedef long long ll;
#define pb push_back
#define INF 9999999999999999

long long max_weights(int N, int M, vector<int> X, vector<int> Y,vector<int> W) 
{
  ll sum1=0,sum2=0;
  for(int i=0;i<M;i++)
  {
    if(X[i])
    sum1+=W[i];
    else
    sum2+=W[i];

  }
  if(N==2)
  return max(sum1,sum2);

  ll pre[2][N];
  ll maxi=max(sum1,sum2);
  vector<vector<int>>arr(N,vector<int>(N,0));
  for(int i=0;i<M;i++)
    arr[X[i]][Y[i]]=W[i];

  ll l=0,r=0;
  for(int i=0;i<N;i++)
  {
    l+=arr[0][i];
    r+=arr[1][i];
    maxi=max(maxi,l+sum1-r);
  }

  return maxi;
}

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:26:6: warning: unused variable 'pre' [-Wunused-variable]
   26 |   ll pre[2][N];
      |      ^~~

• Subtask 1: 0 / 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