Compilare: main.cpp: In function 'int main()': main.cpp:103:40: warning: 'ifn' may be used uninitialized [-Wmaybe-uninitialized] 103 | while (!h.empty() and !viz[ifn][jfn]){ | ~~~~~~~~~~~~^ main.cpp:70:9: note: 'ifn' was declared here 70 | int ifn,jfn; | ^~~ main.cpp:103:40: warning: 'jfn' may be used uninitialized [-Wmaybe-uninitialized] 103 | while (!h.empty() and !viz[ifn][jfn]){ | ~~~~~~~~~~~~^ main.cpp:70:13: note: 'jfn' was declared here 70 | int ifn,jfn; | ^~~ main.cpp:102:9: warning: 'jst' may be used uninitialized [-Wmaybe-uninitialized] 102 | int ans = Lee[ist][jst]; | ^~~ main.cpp:69:13: note: 'jst' was declared here 69 | int ist,jst; | ^~~ main.cpp:102:9: warning: 'ist' may be used uninitialized [-Wmaybe-uninitialized] 102 | int ans = Lee[ist][jst]; | ^~~ main.cpp:69:9: note: 'ist' was declared here 69 | int ist,jst; | ^~~