Compilare: main.cpp: In function 'int who(int)': main.cpp:47:12: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] return ans; ^~~ main.cpp: In function 'int main()': main.cpp:98:26: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] ck.insert(who(it->y)); ~~~^~~~~~~ main.cpp:95:22: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] ck.insert(who(r[i].y)); ~~~^~~~~~~~