Compilare: main.cpp: In function 'int main()': main.cpp:150:195: warning: self-comparison always evaluates to false [-Wtautological-compare] if (a[i][j-1]==a[i-1][j]&&a[i][j-1]==a[i][j+1]&&a[i][j]!=a[i][j-1]&&matrice1[i][j-1]+matrice1[i-1][j]+matrice1[i][j+1]+1>maxim1&&matrice[i][j-1]!=matrice[i-1][j]&&matrice[i][j-1]!=matrice[i][j-1]&&matrice[i-1][j]!=matrice[i][j-1]) ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:174:200: warning: suggest parentheses around comparison in operand of '!=' [-Wparentheses] if (a[i][j-1]==a[i-1][j]&&a[i][j-1]==a[i][j+1]&&a[i][j-1]==a[i+1][j]&&a[i][j]!=a[i][j-1]&&matrice1[i][j-1]+matrice1[i-1][j]+matrice1[i][j+1]+matrice1[i+1][j]+1>maxim1&&matrice[i][j-1]!=matrice[i-1][j]!=matrice[i][j+1]!=matrice[i+1][j]) ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:174:217: warning: suggest parentheses around comparison in operand of '!=' [-Wparentheses] if (a[i][j-1]==a[i-1][j]&&a[i][j-1]==a[i][j+1]&&a[i][j-1]==a[i+1][j]&&a[i][j]!=a[i][j-1]&&matrice1[i][j-1]+matrice1[i-1][j]+matrice1[i][j+1]+matrice1[i+1][j]+1>maxim1&&matrice[i][j-1]!=matrice[i-1][j]!=matrice[i][j+1]!=matrice[i+1][j]) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~