Compilare: main.cpp: In function 'int main()': main.cpp:19:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (i=1;i<N;i++) ^~~ main.cpp:28:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for (i=1;i<=N-2;i++){ ^~~ main.cpp:9:9: warning: unused variable 'o' [-Wunused-variable] {int N, o=1, r, pas, i , j, x, p=0 , aux; ^ main.cpp:42:17: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] p=p+N-r; ~^~~~~~