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#include <iostream> #include <algorithm> // For std::min and std::max void kernel(double* vsp, double* vstp, double* vxne, double* ve3, double* vlr, double* vlin, double* vxnd, int loop, int n) { double scale = 5.0 / 3.0; double xnm, e6; for (int l = 1; l <= loop; ++l) { int i = n - 1; int ink = -1; xnm = 1.0 / 3.0; e6 = 1.03 / 3.07; while (true) { double e3 = xnm * vlr[i] + vlin[i]; double xnei = vxne[i]; vxnd[i] = e6; double xnc = scale * e3; if (xnm > xnc || xnei > xnc) { e6 = xnm * vsp[i] + vstp[i]; vxne[i] = e6; xnm = e6; ve3[i] = e6; i += ink; if (i == 0) break; } else { ve3[i] = e3; e6 = e3 + e3 - xnm; vxne[i] = e3 + e3 - xnei; xnm = e6; i += ink; if (i == 0) break; } } } } int main() { const int loop = 1000; // Number of iterations const int n = 50; // Size of arrays double vsp[n], vstp[n], vxne[n], ve3[n], vlr[n], vlin[n], vxnd[n]; // Initialize arrays with some example values for (int i = 0; i < n; ++i) { vsp[i] = vstp[i] = vxne[i] = ve3[i] = vlr[i] = vlin[i] = vxnd[i] = 1.0; // Example initialization } // Call the kernel function kernel(vsp, vstp, vxne, ve3, vlr, vlin, vxnd, loop, n); // Output the results for verification for (int i = 0; i < n; ++i) { std::cout << "ve3[" << i << "] = " << ve3[i] << std::endl; } return 0; }
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