Compilare: main.cpp:6:5: warning: built-in function 'log' declared as non-function [-Wbuiltin-declaration-mismatch] 6 | int log[dim]; | ^~~ main.cpp: In function 'int main()': main.cpp:26:34: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 26 | m2=a[k-1][i+(1<<k-1)][j]; | ~^~ main.cpp:27:37: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 27 | m3=a[k-1][i][j+(1<<k-1)]; | ~^~ main.cpp:28:34: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 28 | m4=a[k-1][i+(1<<k-1)][j+(1<<k-1)]; | ~^~ main.cpp:28:46: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 28 | m4=a[k-1][i+(1<<k-1)][j+(1<<k-1)]; | ~^~