Compilare: main.cpp: In function 'int main()': main.cpp:115:10: warning: unused variable 'd' [-Wunused-variable] char d; ^ main.cpp: In function 'void solve2()': main.cpp:109:29: warning: 'jm' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<im<<' '<<jm<<'\n'<<colmx; ^~~~~ main.cpp:109:14: warning: 'im' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<im<<' '<<jm<<'\n'<<colmx; ^~~ main.cpp:91:10: warning: 'colmx' may be used uninitialized in this function [-Wmaybe-uninitialized] char colmx; ^~~~~