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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. void printknapSack(int W, int wt[], int val[], int n)
  5. {
  6.     int i, w;
  7.     int K[n + 1][W + 1];
  8.  
  9.     for (i = 0; i <= n; i++)
  10.     {
  11.         for (w = 0; w <= W; w++)
  12.         {
  13.             if (i == 0 || w == 0)
  14.             {
  15.                 K[i][w] = 0;
  16.             }
  17.             else if (wt[i - 1] <= w)
  18.             {
  19.                 K[i][w] = max(val[i - 1] + K[i - 1][w - wt[i - 1]], K[i - 1][w]);
  20.             }
  21.              else
  22.             {
  23.                 K[i][w] = K[i - 1][w];
  24.             }
  25.         }
  26.     }
  27.  
  28.     int res = K[n][W];
  29.     cout <<endl<< "Max-Profit: " << res << endl;
  30.     cout <<endl<< "The Items are: "<<endl<<endl;
  31.  
  32.     w = W;
  33.     for (i = n; i > 0 && res > 0; i--)
  34.     {
  35.         if (res == K[i - 1][w])
  36.             continue;
  37.         else
  38.         {
  39.             cout <<"Item Number: " <<i << " and Weight: "<<wt[i - 1] <<endl;
  40.             res = res - val[i - 1];
  41.             w = w - wt[i - 1];
  42.         }
  43.     }
  44. }
  45.  
  46. int main()
  47. {
  48.     int nbag,wt,w;
  49.     cout<<"Enter the number of bags: ";
  50.     cin >> nbag;
  51.     int values[nbag];
  52.     cout<<"Enter the values: ";
  53.     for(int i=0; i<nbag; i++){
  54.         cin>> values[i];
  55.     }
  56.  
  57.     int weight[nbag];
  58.     cout<<"Enter the weights of bags: ";
  59.     for(int i=0; i<nbag; i++){
  60.         cin>> weight[i];
  61.     }    
  62.     cout<<"Enter the maximum weight of the bag: ";
  63.     cin>>w;
  64.  
  65.     int n = sizeof(values) / sizeof(values[0]);
  66.  
  67.     printknapSack(w, weight, values, n);
  68.  
  69.     return 0;
  70. }
Success #stdin #stdout 0.01s 5276KB
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stdout
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Enter the number of bags: Enter the values: Enter the weights of bags: Enter the maximum weight of the bag: 
Max-Profit: 55

The Items are: 

Item Number: 3 and Weight: 4
Item Number: 2 and Weight: 1
https://ideone.com/61ymHE
Knapsack 01 problem
language:
C++ (gcc 8.3)
created:
10 hours ago
visibility:
public

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