Compilare: main.cpp: In function 'bool exista(int, int, int)': main.cpp:17:9: warning: unused variable 'du' [-Wunused-variable] int du=lastdir[x][y].d1; ^~ main.cpp:18:9: warning: unused variable 'dd' [-Wunused-variable] int dd=lastdir[x][y].d2; ^~ main.cpp:19:9: warning: unused variable 'dt' [-Wunused-variable] int dt=lastdir[x][y].d3; ^~ main.cpp:20:9: warning: unused variable 'dp' [-Wunused-variable] int dp=lastdir[x][y].d4; ^~ main.cpp: In function 'void lee()': main.cpp:72:17: warning: unused variable 'u' [-Wunused-variable] int u=300; ^ main.cpp:80:17: warning: unused variable 'u' [-Wunused-variable] int u=300; ^ main.cpp: In function 'int main()': main.cpp:108:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;++i) ^~~ main.cpp:115:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cin>>l1>>c1>>l2>>c2; ^~~ main.cpp:141:21: warning: unused variable 'u' [-Wunused-variable] int u=300; ^