Submission #864506

#	Time	Username	Problem	Language	Result	Execution time	Memory
864506		thundereyex	Knapsack (NOI18_knapsack)	C++14	29 / 100	4 ms	1968 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(k+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=1;j<=n;j++){
            long long int cnt=0;
            while(cnt<=v1[i-1][2]){
        long long int op1=0,op2=0;
        if(j>=cnt*(v1[i-1][1])){
           op1=cnt*v1[i-1][0]+dp[i-1][j-cnt*v1[i-1][1]];
        }
              op2=dp[i-1][j];
             dp[i][j]=max(op1,op2);
            //  cout<<dp[i][j]<<endl;
             max1=max(dp[i][j],max1);   
             cnt++;
            }
            // max1=max(dp[i][j],max1);        
        }
    }
    // 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:29:18: 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