Compilare: main.cpp: In function 'void ciur()': main.cpp:14:14: warning: iteration 24998 invokes undefined behavior [-Waggressive-loop-optimizations] c[i] = 1; ~~~~~^~~ main.cpp:13:23: note: within this loop for (int i = 4; i <= 50000; i += 2) ~~^~~~~~~~ main.cpp: In function 'int main()': main.cpp:66:40: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << r << " " << max << " " << c; ^ main.cpp:66:18: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << r << " " << max << " " << c; ^~~