Compilare: main.cpp: In function 'int main()': main.cpp:11:28: warning: iteration 1000001 invokes undefined behavior [-Waggressive-loop-optimizations] 11 | for(i=1;i<=N;i++) fi[i]=i-1; | ~~~~~^~~~ main.cpp:11:14: note: within this loop 11 | for(i=1;i<=N;i++) fi[i]=i-1; | ^ main.cpp:15:39: warning: iteration 1000001 invokes undefined behavior [-Waggressive-loop-optimizations] 15 | for(i=1;i<=N;i++) s[i]=s[i-1]+fi[i]; | ~~~~^ main.cpp:15:14: note: within this loop 15 | for(i=1;i<=N;i++) s[i]=s[i-1]+fi[i]; | ^