Compilare: main.cpp: In function 'int main()': main.cpp:31:18: warning: unused variable 's' [-Wunused-variable] long long n, s = 0, a; ^ main.cpp: In function 'void ciur()': main.cpp:19:16: warning: iteration 1000003 invokes undefined behavior [-Waggressive-loop-optimizations] if (e[i] == i) ~~~^ main.cpp:17:19: note: within this loop for (i = 2; i <= NMAX; i++) ~~^~~~~~~ main.cpp:16:14: warning: iteration 1000003 invokes undefined behavior [-Waggressive-loop-optimizations] e[i] = i; ~~~~~^~~ main.cpp:15:19: note: within this loop for (i = 2; i <= NMAX; i++) ~~^~~~~~~