Compilare: user.cpp: In function 'int solve(int)': user.cpp:65: warning: statement has no effect user.cpp: In function 'int main()': user.cpp:95: warning: format '%d' expects type 'int*', but argument 2 has type 'char*' user.cpp:111: warning: 'tmin' is used uninitialized in this function user.cpp:92: warning: 'wmin' may be used uninitialized in this function