Submission #864438

#	Time	Username	Problem	Language	Result	Execution time	Memory
864438		thundereyex	Knapsack (NOI18_knapsack)	C++14	49 / 100	92 ms	262144 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);
                   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>>());
    // cout<<v1.size()<<endl;
    long long int max1=0;
    for(int i=1;i<=v1.size();i++){
         
        for(int j=1;j<=n;j++){
       long long     int op1=0,op2=0;
           if(j>=v1[i-1][1]){
               op1=v1[i-1][0]+dp[i-1][j-v1[i-1][1]];
           }
           op2=dp[i-1][j];
           dp[i][j]=max(op1,op2);
            // max1=max(dp[i][j],max1);        
        }
    }
   
    cout<<dp[v1.size()][n]<<endl;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:30:18: 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]
   30 |     for(int i=1;i<=v1.size();i++){
      |                 ~^~~~~~~~~~~
knapsack.cpp:29:19: warning: unused variable 'max1' [-Wunused-variable]
   29 |     long long int max1=0;
      |                   ^~~~

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