Compilare: main.cpp: In function 'bool ord(const el&, const el&)': main.cpp:28:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 28 | if(a.x<b.x || a.x==b.x && a.i<b.i) | ~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:113:15: warning: 'maxi' may be used uninitialized [-Wmaybe-uninitialized] 113 | while(maxi!=-1) | ~~~~^~~~ main.cpp:88:15: note: 'maxi' was declared here 88 | int max=0,maxi; | ^~~~