Compilare: main.cpp: In function 'int main()': main.cpp:121:13: warning: unused variable 'last' [-Wunused-variable] 121 | int last; | ^~~~ main.cpp:84:15: warning: unused variable 'j' [-Wunused-variable] 84 | int cer,i,j,k,x,y,r,g,a,b,minim=INF,coord1,coord2; | ^ main.cpp:120:30: warning: 'coord2' may be used uninitialized in this function [-Wmaybe-uninitialized] 120 | int hash1=coord1*BASE+coord2; | ~~~~~~~~~~~^~~~~~~ main.cpp:120:25: warning: 'coord1' may be used uninitialized in this function [-Wmaybe-uninitialized] 120 | int hash1=coord1*BASE+coord2; | ~~~~~~^~~~~