Compilare: main.cpp: In function 'int init()': main.cpp:34:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp:33:21: warning: iteration 200010 invokes undefined behavior [-Waggressive-loop-optimizations] permHeap[i] = -1; ~~~~~~~~~~~~^~~~ main.cpp:32:19: note: within this loop for(int i=0; i<=nmax; i++) ^ main.cpp:28:17: warning: iteration 200009 invokes undefined behavior [-Waggressive-loop-optimizations] log2[i] = curlog2; ~~~~~~~~^~~~~~~~~ main.cpp:21:19: note: within this loop for(int i=1; i<=nmax; i++) ^ main.cpp:18:17: warning: iteration 200009 invokes undefined behavior [-Waggressive-loop-optimizations] fact[i] = (fact[i-1] * 1LL * i) % mod; ^ main.cpp:17:19: note: within this loop for(int i=1; i<=nmax; i++) ^