Knapsack C++, C++ (clang)

Language: Layout:

#include <iostream> // KNAPSACK 0-1 DANILIN
using namespace std; int main()
{ setlocale (LC_ALL, "RUS");
  srand(time(NULL));
   
{ int n=7; int G=5; int a=2;  
  int dec, i, h, k, max, m; 
  for (i=0; i<n; i++) a=2*a; string e[a]; // 2^n 
  int L[n], C[n], j[n], q[a], d[a];

cout << "#  Кол  Цена" << endl; 
cout << "#  Amo Price" << endl << endl; 
for (i=0; i<n; i++)
{ L[i]=1+(rand() % 3); C[i]=10+(rand() % 9); j[i]=0;
  cout << i+1 << "   " << L[i] << "   " << C[i] << endl; 
} 
for (i=0; i<a; i++) { q[i]=0; d[i]=0;}
cout << endl;

cout << "Мх Кол Ст-ть Шифр" << endl; 
cout << "Mx Amo Price Cipher" << endl << endl; 
for (h = a-1; h>(a-1)/2; h--)
  { dec=h; while (dec > 0)
      { string s(""); s += '0'+dec%2;   
        e[h] = s + e[h]; dec/=2; 
      }
if (e[h] == "") {e[h] = "0";}
e[h]= e[h].substr(1, e[h].size()-1);

for (k=0; k<n; k++)
{ j[k] = atoi((char*)(e[h].substr(k,1)).c_str()); 
  q[h]=q[h]+L[k]*j[k]*C[k];
  d[h]=d[h]+L[k]*j[k];
}

if (d[h] <= G)
cout << G << "  " << d[h] << "  " << q[h] << "  " << e[h] << endl; 
} cout << endl;

max=0; m=1;
for (i=0; i<a; i++)
{ if (d[i]<=G && q[i]>max){ max=q[i]; m=i;}
}
cout << "Мх Ст-ть Шифр" << endl; 
cout << "Mx Price Cipher" << endl << endl; 
cout << d[m] << "  " << q[m] << "  " << e[m] << endl << endl;}
system("pause");
}

Show compiler warnings [ + ] Compiler args [ + ] Show input
Compilation time: 0.62 sec, absolute running time: 0.15 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,88 sec