Compilare: main.cpp: In function 'int main()': main.cpp:22:122: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] 22 | if(F>>p>>q>>r>>s,z[(p-1)*e+q].push_back((r-1)*e+s),z[(r-1)*e+s].push_back((p-1)*e+q),!u&&!w&&a[p][r]!=1&&!a[r][s]!=1) | ^~ main.cpp:22:114: note: add parentheses around left hand side expression to silence this warning 22 | if(F>>p>>q>>r>>s,z[(p-1)*e+q].push_back((r-1)*e+s),z[(r-1)*e+s].push_back((p-1)*e+q),!u&&!w&&a[p][r]!=1&&!a[r][s]!=1) | ^~~~~~~~ | ( )