Compilare: main.cpp: In function 'int main()': main.cpp:123:17: warning: unused variable 'n' [-Wunused-variable] int n, m; no[xv + 2][yv] = true; ^ main.cpp:123:20: warning: unused variable 'm' [-Wunused-variable] int n, m; no[xv + 2][yv] = true; ^ main.cpp:122:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(isin(xv + 2, yv)) ^~ main.cpp:123:30: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' int n, m; no[xv + 2][yv] = true; ^~