Compilare: main.cpp: In function 'int main()': main.cpp:50:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=l;i++) ^~~ main.cpp:52:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' drum(xs,ys); ^~~~ main.cpp:60:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<linie[i].size();j+=2) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'void drum(int, int)': main.cpp:15:9: warning: 'pozi' may be used uninitialized in this function [-Wmaybe-uninitialized] int pozi; ^~~~