Compilare: user.cpp: In function ‘bool div_com(int, int)’: user.cpp:13:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(j==1) ^~ user.cpp:15:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ return true; ^~~~~~ user.cpp: In function ‘int main()’: user.cpp:26:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(!div_com(i,j)) ^ user.cpp:24:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) ^~~ user.cpp:30:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<nr; ^