Compilare: main.cpp: In function 'int main()': main.cpp:24:8: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:30:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=1;i<=n;i++) ^~~ main.cpp:33:17: warning: unused variable 'l' [-Wunused-variable] int l=0; ^ main.cpp:48:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:78:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g<<sx<<" "<<sy<<"\n"<<sc; ^ main.cpp:47:12: warning: 'sc' may be used uninitialized in this function [-Wmaybe-uninitialized] char sc; ^~