Knapsack 0/1

 Knapsack 0/1


#include<stdio.h>
void sort(int n, float p[],float w[],float v[])
{
    int i,j,temp;
    for(i=0;i<n;i++)
    {
        for(j=i+1;j<n;j++)
        {
            if(p[i]<p[j])
            {
                temp=p[j];
                p[j]=p[i];
                p[j]=temp;


                temp=w[j];
                w[j]=w[i];
                w[i]=temp;
               

                temp=v[j];
                v[j]=v[i];
                v[j]=temp;
            }
        }
    }
}
int knapsack(float p[],float v[], float w[], int n, int c)
{
    int i;
     float t;
     for(i=0;i<n;i++)
     {
        if(t<c)
        {
            if((t+w[i])>c)
            {
                w[i]=c-t;
                v[i]=w[i]*p[i];
                t=c;
            }
            else{
                t=t+w[i];
            }
        }
        else
        break;
     }
     return i;
}
int main()
{
    float w[50],p[50],v[50],sum_va=0.0, sum_wt=0.0, temp;
    int n=5;
    int cap=60;
    printf("Enter thge weight and value(pft):\n");
    for(int i=0;i<n;i++)
    {
        scanf("%f%f",&w[i],&v[i]);
        p[i]=v[i]/w[i];
    }
    sort(n,p,w,v);
    n=knapsack(p,v,w,n,cap);
    for(int i=0;i<n;i++)
    {
        printf("\n%f",w[i]);
        printf("\t%f",v[i]);
        printf("\t%f",p[i]);
        sum_va=sum_va+v[i];
        sum_wt=sum_wt+w[i];
    }
    printf("\n\n sum of value: %f",sum_va);
    printf("\n\n total weight :%f",sum_wt);
    return 0;
}


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