Compilare: main.cpp: In function 'int main()': main.cpp:113:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i<=N; i++) ^~~ main.cpp:128:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' h[xo][yo] = -1; ^