Compilare: main.cpp: In function 'void read()': main.cpp:21:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for( i=1; i<=n; i++) ^~~ main.cpp:23:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int x, y ,c; ^~~ main.cpp: In function 'int rf()': main.cpp:63:1: warning: control reaches end of non-void function [-Wreturn-type] } ^