Compilare: main.cpp: In function 'int main()': main.cpp:19:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for( int i = 1 ; i <= n - 1 ; i ++ ) ^~~ main.cpp:24:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' sort( a , a + l + 1 ) ; ^~~~