Compilare: user.cpp: In function ‘int verif(int, int, int)’: user.cpp:90:73: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(viz[x][y]+1==viz[x][y-1] || viz[x][y]-1==viz[x][y-1] && !(viz[x][y]==0 || viz[x][y-1]==0) ^ user.cpp:97:81: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(viz[x-1][y-1]+1==viz[x][y-1] || viz[x-1][y-1]-1==viz[x][y-1] && !(viz[x-1][y-1]==0 || viz[x][y-1]==0) ^ user.cpp:104:81: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(viz[x-1][y-1]+1==viz[x-1][y] || viz[x-1][y-1]-1==viz[x-1][y] && !(viz[x-1][y-1]==0 || viz[x-1][y]==0) ^ user.cpp:111:73: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(viz[x-1][y]+1==viz[x][y] || viz[x-1][y]-1==viz[x][y] && !(viz[x-1][y]==0 || viz[x][y]==0) ^ user.cpp:118:1: warning: control reaches end of non-void function [-Wreturn-type] } ^