Compilare: user.cpp: In function ‘int verif2()’: user.cpp:101:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(b[i][j]>0 && (b[i-1][j]+1<b[i][j] && b[i-1][j]>0)||(b[i][j-1]+1<b[i][j] && b[i][j-1]>0)||(b[i][j+1]+1<b[i][j] && b[i][j+1]>0)||(b[i+1][j]+1<b[i][j] && b[i+1][j]>0)) ^ user.cpp: In function ‘int mini2(int, int, int)’: user.cpp:138:1: warning: control reaches end of non-void function [-Wreturn-type] } ^