Compilare: main.cpp: In function 'int main()': main.cpp:82:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(j+1 != 1) ^~ main.cpp:84:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' ban ++; ^~~ main.cpp:42:9: warning: unused variable 'a' [-Wunused-variable] int a, b, x = 0, y = 0, xs, ys, ban = 0; ^ main.cpp:42:12: warning: unused variable 'b' [-Wunused-variable] int a, b, x = 0, y = 0, xs, ys, ban = 0; ^