Compilare: main.cpp: In function 'int main()': main.cpp:57:12: warning: statement has no effect [-Wunused-value] cin>>q; ^ main.cpp:61:19: warning: statement has no effect [-Wunused-value] cin>>a>>b; ^ main.cpp:70:22: warning: statement has no effect [-Wunused-value] cin>>uval>>upoz; ^ main.cpp:74:22: warning: statement has no effect [-Wunused-value] cin>>uval>>upoz; ^ main.cpp:79:25: warning: statement has no effect [-Wunused-value] cin>>uval>>c>>upoz; ^ main.cpp:58:9: warning: 'q' may be used uninitialized in this function [-Wmaybe-uninitialized] switch(q) ^~~~~~ main.cpp:62:21: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized] qst=(1>a-b?1:a-b); ~^~ main.cpp:62:21: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:82:17: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] upoz=c; ~~~~^~