Compilare: main.cpp: In function 'int main()': main.cpp:63:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;++i) ^~~ main.cpp:65:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~ main.cpp:14:7: warning: unused variable 'j' [-Wunused-variable] int i,j; ^