Compilare: main.cpp: In function 'void read()': main.cpp:13:12: warning: unused variable 'x' [-Wunused-variable] int i, j, x; ^ main.cpp: In function 'void solve()': main.cpp:74:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if (a[i][j] == Max) ^ main.cpp:26:12: warning: 'Max' may be used uninitialized in this function [-Wmaybe-uninitialized] int i, j, Max; ^~~