Compilare: main.cpp: In function 'int main()': main.cpp:46:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &a, &b); ^ main.cpp: In function 'void ciur()': main.cpp:22:20: warning: iteration 22359 invokes undefined behavior [-Waggressive-loop-optimizations] if (!Ciur[i]) Primes[Size++] = i; ~~~~~~^ main.cpp:21:23: note: within this loop for (int i = 3; i <= MAX_SQRT; i += 2){ ^ main.cpp: In function 'int main()': main.cpp:58:42: warning: 'times' may be used uninitialized in this function [-Wmaybe-uninitialized] }else if (divNo == maxNo) times++; ^