Compilare: main.cpp: In function 'int main()': main.cpp:14:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (i=1; i<=m; i++) ^~~ main.cpp:35:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' co=o; ^~ main.cpp:324:30: warning: 'yy' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << xx << " " << yy << endl; ^~ main.cpp:324:23: warning: 'xx' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << xx << " " << yy << endl; ^~~