Submission #788955

#	Time	Username	Problem	Language	Result	Execution time	Memory
788955		codergirl	Knapsack (NOI18_knapsack)	C++14	Compilation error	0 ms	0 KiB

knapsack

#include <iostream>
#include <cmath>

int main() {
    std::ios_base::sync_with_stdio(0);
    std::cin.tie(0);
    
    long v[1000000], w[1000000]; int s, n; std::cin >> s >> n;
    
    long counter = 0, t; int x, y, z;
    for (int i=0; i < n; i++) {
        std::cin >> y >> z >> x;
        for (int j=0; j < 30; j++) {
            if (x == 0) break;
            t = std::pow(2, j);
            if (x < t) {
                if (z*x > s) break;
                v[counter] = y*x, w[counter++] = z*x; break;
            } else {
                if (z*t > s) break;
                v[counter] = y*t, w[counter++] = z*t; x -= t;
            }
        }
    }
    
    long arr[2][s+1]{};
    //for (long j=0; j <= s; j++) arr[0][j] = 0;
    //arr[1][0] = 0;
    
    int a=0, b=1;
    for (long i=1; i <= counter; i++) {
        a = 1-a, b = 1-b;
        for (long j=1; j <= s; j++) {
            if (j-w[i-1] >= 0) arr[a][j] = std::max(arr[b][j-w[i-1]]+v[i-1], arr[b][j]);
            else arr[a][j] = arr[b][j];
        }
    }
    
    std::cout << arr[a][s] << '\n';
}

Compilation message (stderr)

during RTL pass: expand
knapsack.cpp: In function 'int main()':
knapsack.cpp:26:10: internal compiler error: in make_decl_rtl, at varasm.c:1342
   26 |     long arr[2][s+1]{};
      |          ^~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.