Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<bits/stdc++.h> | ^~~~~~ main.cpp:5:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 5 | main(){ | ^~~~ main.cpp: In function 'int main()': main.cpp:15:17: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context] 15 | if(x*y&&x<=n&&y<=m&&!d[x][y]&&F(a[x][y])) | ~^~