Compilare: main.cpp: In function 'int Lee(int, int, int)': main.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:66:25: warning: left operand of comma operator has no effect [-Wunused-value] fout << matrix[gi2, gj2]; ^~~ main.cpp: In function 'int Lee(int, int, int)': main.cpp:30:31: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations] int xSecund = dx[i] + x; ~~~~^ main.cpp:29:27: note: within this loop for (int i = 1; i <= 4; ++i) { ~~^~~~