Compilare: main.cpp: In function 'int main()': main.cpp:53:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<als;i++) ^~~ main.cpp:57:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' f.close(); ^ main.cpp:27:9: warning: unused variable 'a' [-Wunused-variable] int a[7]={-1,10,11,12,13,14,-9}; ^