Compilare: main.cpp: In function 'int main()': main.cpp:10:12: warning: statement has no effect [-Wunused-value] r>>B>>k>>n; ~~~~~~~^~~ main.cpp:24:7: warning: 'k' is used uninitialized in this function [-Wuninitialized] rf=r%k; ~~^~~~ main.cpp:24:7: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:19:13: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] p=(n%10)*p; ~~^~~~