Compilare: main.cpp: In function 'void Do()': main.cpp:47:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for( int i = 1; i <= N; ++i ) ^~~ main.cpp:55:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' swap( A[1], A[lowest] ); ^~~~ main.cpp:73:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < S.size(); ++i ) ~~^~~~~~~~~~ main.cpp:44:7: warning: 'lowest' may be used uninitialized in this function [-Wmaybe-uninitialized] int lowest; ^~~~~~