Compilare: user.cpp: In function 'void init()': user.cpp:15: warning: array subscript has type 'char' user.cpp:20: warning: array subscript has type 'char' user.cpp:21: warning: array subscript has type 'char' user.cpp: In function 'void solve()': user.cpp:51: warning: unused variable 't' user.cpp: In function 'void solve2()': user.cpp:121: warning: format '%d' expects type 'int', but argument 2 has type 'long long int' user.cpp:114: warning: unused variable 'j' /tmp/ccIYaMTS.o: In function `main': user.cpp:(.text+0x605): warning: the `gets' function is dangerous and should not be used.