Submission #864579

#	Time	Username	Problem	Language	Result	Execution time	Memory
864579		thundereyex	Knapsack (NOI18_knapsack)	C++14	29 / 100	4 ms	1884 KiB

knapsack

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long int n,k;
    cin>>n>>k;
    vector<vector<long long int>>v1;
    vector<long long int>v2;
       for(int i=0;i<k;i++){
        long long  int a,b,c;
         cin>>a>>b>>c;
         if(b<=n){
          long long   int g= n/b;
              // for(int j=0;j<min(g,c);j++){
                   v2.push_back(a);
                   v2.push_back(b);
                   v2.push_back(min(g,c));
                   v1.push_back(v2);
                   v2.clear();
              // }
 
        
         }
         
        //  v2.clear();
    }
      vector<vector<long long int>>dp(v1.size()+1,vector<long long int>(n+1,0));
    // sort(v1.begin(),v1.end(),greater<vector<int>>());
    long long int max1=0;
      for (int i = 1; i <= v1.size(); i++) 
      for (int j = n; j >= 0; j--)
        for (int t = 0; t <= v1[i-1][2]; t++)
          if (j >= v1[i-1][1] * t) {
            dp[i][j] = max(dp[i-1][j], dp[i-1][j - v1[i-1][1] * t] + v1[i-1][0] * t);
            max1=max(max1,dp[i][j]);
          }
    // for(int i=1;i<=k;i++){
    //     for(int j=1;j<=n;j++){
    //         cout<<dp[i][j]<<" ";
    //     }
    //     cout<<endl;
    // }
    // cout<<endl;
    cout<<max1<<endl;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:29:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |       for (int i = 1; i <= v1.size(); i++)
      |                       ~~^~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 24
• Subtask 5: 0 / 27