Compilare: main.cpp: In function 'int main()': main.cpp:117:8: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int j=0; j<n; j++) ^~~ main.cpp:120:11: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' spiralFill(m,n,a); ^~~~~~~~~~ main.cpp: In function 'int spiralFill(int, int, int (*)[1000])': main.cpp:98:13: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<val+dif; ^~~